Home / 20,518,471,962.60-30,797,610,331.80-9,902,167,420.02

Finding the Fourth Proportional to 20,518,471,962.60, 30,797,610,331.80 and 9,902,167,420.02

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Solution

The fourth proportional to 20,518,471,962.60, 30,797,610,331.80 and 9,902,167,420.02 is: 14,862,855,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518,471,962.60 : 30,797,610,331.80 = 9,902,167,420.02 : x
  2. Step 2: Convert to fraction form
    20,518,471,962.60/30,797,610,331.80 = 9,902,167,420.02/x
  3. Step 3: Cross multiply
    20,518,471,962.60x = 30,797,610,331.80 × 9,902,167,420.02
  4. Step 4: Simplify right side
    20,518,471,962.60x = 304,963,093,642,021,306,368
  5. Step 5: Solve for x
    x = 304,963,093,642,021,306,368/20,518,471,962.60
  6. Step 6: Final answer
    x = 14,862,855,976.70

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1.5x scale

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.