Home / 20,898,158.60-31,347,237.90-12,713,967.20

Finding the Fourth Proportional to 20,898,158.60, 31,347,237.90 and 12,713,967.20

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Solution

The fourth proportional to 20,898,158.60, 31,347,237.90 and 12,713,967.20 is: 19,070,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898,158.60 : 31,347,237.90 = 12,713,967.20 : x
  2. Step 2: Convert to fraction form
    20,898,158.60/31,347,237.90 = 12,713,967.20/x
  3. Step 3: Cross multiply
    20,898,158.60x = 31,347,237.90 × 12,713,967.20
  4. Step 4: Simplify right side
    20,898,158.60x = 398,547,754,471,196.81
  5. Step 5: Solve for x
    x = 398,547,754,471,196.81/20,898,158.60
  6. Step 6: Final answer
    x = 19,070,950.80

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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.