Home / 72,266,646.96-99,728,068.68-39,226,874.76

Finding the Fourth Proportional to 72,266,646.96, 99,728,068.68 and 39,226,874.76

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Solution

The fourth proportional to 72,266,646.96, 99,728,068.68 and 39,226,874.76 is: 54,133,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,266,646.96 : 99,728,068.68 = 39,226,874.76 : x
  2. Step 2: Convert to fraction form
    72,266,646.96/99,728,068.68 = 39,226,874.76/x
  3. Step 3: Cross multiply
    72,266,646.96x = 99,728,068.68 × 39,226,874.76
  4. Step 4: Simplify right side
    72,266,646.96x = 3,912,020,460,167,038.50
  5. Step 5: Solve for x
    x = 3,912,020,460,167,038.50/72,266,646.96
  6. Step 6: Final answer
    x = 54,133,139.21

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1.5x scale

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.