Home / 20,518,471,968.77-30,797,610,340.86-9,902,167,426.19

Finding the Fourth Proportional to 20,518,471,968.77, 30,797,610,340.86 and 9,902,167,426.19

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Solution

The fourth proportional to 20,518,471,968.77, 30,797,610,340.86 and 9,902,167,426.19 is: 14,862,855,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518,471,968.77 : 30,797,610,340.86 = 9,902,167,426.19 : x
  2. Step 2: Convert to fraction form
    20,518,471,968.77/30,797,610,340.86 = 9,902,167,426.19/x
  3. Step 3: Cross multiply
    20,518,471,968.77x = 30,797,610,340.86 × 9,902,167,426.19
  4. Step 4: Simplify right side
    20,518,471,968.77x = 304,963,093,921,833,156,608
  5. Step 5: Solve for x
    x = 304,963,093,921,833,156,608/20,518,471,968.77
  6. Step 6: Final answer
    x = 14,862,855,985.86

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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.