Home / 885,188,152.92-1,221,666,768.13-503,802,916.13

Finding the Fourth Proportional to 885,188,152.92, 1,221,666,768.13 and 503,802,916.13

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Solution

The fourth proportional to 885,188,152.92, 1,221,666,768.13 and 503,802,916.13 is: 695,308,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,188,152.92 : 1,221,666,768.13 = 503,802,916.13 : x
  2. Step 2: Convert to fraction form
    885,188,152.92/1,221,666,768.13 = 503,802,916.13/x
  3. Step 3: Cross multiply
    885,188,152.92x = 1,221,666,768.13 × 503,802,916.13
  4. Step 4: Simplify right side
    885,188,152.92x = 615,479,280,315,812,864
  5. Step 5: Solve for x
    x = 615,479,280,315,812,864/885,188,152.92
  6. Step 6: Final answer
    x = 695,308,989.72

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Double scale
Find fourth proportional to 885,188,153.92, 1,221,666,769.51 and 503,802,917.13
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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.