Home / 112,769,854.40-169,154,781.60-85,895,998.40

Finding the Fourth Proportional to 112,769,854.40, 169,154,781.60 and 85,895,998.40

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Solution

The fourth proportional to 112,769,854.40, 169,154,781.60 and 85,895,998.40 is: 128,843,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,769,854.40 : 169,154,781.60 = 85,895,998.40 : x
  2. Step 2: Convert to fraction form
    112,769,854.40/169,154,781.60 = 85,895,998.40/x
  3. Step 3: Cross multiply
    112,769,854.40x = 169,154,781.60 × 85,895,998.40
  4. Step 4: Simplify right side
    112,769,854.40x = 14,529,718,849,665,950
  5. Step 5: Solve for x
    x = 14,529,718,849,665,950/112,769,854.40
  6. Step 6: Final answer
    x = 128,843,997.60

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Similar ratio
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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.