Home / 1,225,737,861.60-1,838,606,792.40-407,932,831.20

Finding the Fourth Proportional to 1,225,737,861.60, 1,838,606,792.40 and 407,932,831.20

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Solution

The fourth proportional to 1,225,737,861.60, 1,838,606,792.40 and 407,932,831.20 is: 611,899,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,737,861.60 : 1,838,606,792.40 = 407,932,831.20 : x
  2. Step 2: Convert to fraction form
    1,225,737,861.60/1,838,606,792.40 = 407,932,831.20/x
  3. Step 3: Cross multiply
    1,225,737,861.60x = 1,838,606,792.40 × 407,932,831.20
  4. Step 4: Simplify right side
    1,225,737,861.60x = 750,028,074,287,282,688
  5. Step 5: Solve for x
    x = 750,028,074,287,282,688/1,225,737,861.60
  6. Step 6: Final answer
    x = 611,899,246.80

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Double scale
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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.