Home / 1,538,323,343.98-2,122,112,202.15-1,009,613,950.72

Finding the Fourth Proportional to 1,538,323,343.98, 2,122,112,202.15 and 1,009,613,950.72

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Solution

The fourth proportional to 1,538,323,343.98, 2,122,112,202.15 and 1,009,613,950.72 is: 1,392,759,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,323,343.98 : 2,122,112,202.15 = 1,009,613,950.72 : x
  2. Step 2: Convert to fraction form
    1,538,323,343.98/2,122,112,202.15 = 1,009,613,950.72/x
  3. Step 3: Cross multiply
    1,538,323,343.98x = 2,122,112,202.15 × 1,009,613,950.72
  4. Step 4: Simplify right side
    1,538,323,343.98x = 2,142,514,084,283,780,864
  5. Step 5: Solve for x
    x = 2,142,514,084,283,780,864/1,538,323,343.98
  6. Step 6: Final answer
    x = 1,392,759,261.35

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Double scale
Find fourth proportional to 1,538,323,344.98, 2,122,112,203.53 and 1,009,613,951.72
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.