Home / 191,726,834.48-287,470,429.08-81,005,587.76

Finding the Fourth Proportional to 191,726,834.48, 287,470,429.08 and 81,005,587.76

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Solution

The fourth proportional to 191,726,834.48, 287,470,429.08 and 81,005,587.76 is: 121,457,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,726,834.48 : 287,470,429.08 = 81,005,587.76 : x
  2. Step 2: Convert to fraction form
    191,726,834.48/287,470,429.08 = 81,005,587.76/x
  3. Step 3: Cross multiply
    191,726,834.48x = 287,470,429.08 × 81,005,587.76
  4. Step 4: Simplify right side
    191,726,834.48x = 23,286,711,071,244,796
  5. Step 5: Solve for x
    x = 23,286,711,071,244,796/191,726,834.48
  6. Step 6: Final answer
    x = 121,457,755.95

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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.