Home / 1,370,261,625.12-1,890,956,255.76-743,730,020.64

Finding the Fourth Proportional to 1,370,261,625.12, 1,890,956,255.76 and 743,730,020.64

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Solution

The fourth proportional to 1,370,261,625.12, 1,890,956,255.76 and 743,730,020.64 is: 1,026,344,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,261,625.12 : 1,890,956,255.76 = 743,730,020.64 : x
  2. Step 2: Convert to fraction form
    1,370,261,625.12/1,890,956,255.76 = 743,730,020.64/x
  3. Step 3: Cross multiply
    1,370,261,625.12x = 1,890,956,255.76 × 743,730,020.64
  4. Step 4: Simplify right side
    1,370,261,625.12x = 1,406,360,935,125,721,856
  5. Step 5: Solve for x
    x = 1,406,360,935,125,721,856/1,370,261,625.12
  6. Step 6: Final answer
    x = 1,026,344,830.32

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Double scale
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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.