Home / 103,547,638.40-142,898,773.03-56,507,742.95

Finding the Fourth Proportional to 103,547,638.40, 142,898,773.03 and 56,507,742.95

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Solution

The fourth proportional to 103,547,638.40, 142,898,773.03 and 56,507,742.95 is: 77,982,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,547,638.40 : 142,898,773.03 = 56,507,742.95 : x
  2. Step 2: Convert to fraction form
    103,547,638.40/142,898,773.03 = 56,507,742.95/x
  3. Step 3: Cross multiply
    103,547,638.40x = 142,898,773.03 × 56,507,742.95
  4. Step 4: Simplify right side
    103,547,638.40x = 8,074,887,133,393,870
  5. Step 5: Solve for x
    x = 8,074,887,133,393,870/103,547,638.40
  6. Step 6: Final answer
    x = 77,982,339.90

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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.