Home / 12,771,700,972.80-19,164,717,820.80-5,409,458,822.40

Finding the Fourth Proportional to 12,771,700,972.80, 19,164,717,820.80 and 5,409,458,822.40

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Solution

The fourth proportional to 12,771,700,972.80, 19,164,717,820.80 and 5,409,458,822.40 is: 8,117,223,548.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,700,972.80 : 19,164,717,820.80 = 5,409,458,822.40 : x
  2. Step 2: Convert to fraction form
    12,771,700,972.80/19,164,717,820.80 = 5,409,458,822.40/x
  3. Step 3: Cross multiply
    12,771,700,972.80x = 19,164,717,820.80 × 5,409,458,822.40
  4. Step 4: Simplify right side
    12,771,700,972.80x = 103,670,751,894,533,046,272
  5. Step 5: Solve for x
    x = 103,670,751,894,533,046,272/12,771,700,972.80
  6. Step 6: Final answer
    x = 8,117,223,548.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.