Home / 89,688,737.40-134,533,106.10-81,752,551.80

Finding the Fourth Proportional to 89,688,737.40, 134,533,106.10 and 81,752,551.80

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Solution

The fourth proportional to 89,688,737.40, 134,533,106.10 and 81,752,551.80 is: 122,628,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688,737.40 : 134,533,106.10 = 81,752,551.80 : x
  2. Step 2: Convert to fraction form
    89,688,737.40/134,533,106.10 = 81,752,551.80/x
  3. Step 3: Cross multiply
    89,688,737.40x = 134,533,106.10 × 81,752,551.80
  4. Step 4: Simplify right side
    89,688,737.40x = 10,998,424,725,255,146
  5. Step 5: Solve for x
    x = 10,998,424,725,255,146/89,688,737.40
  6. Step 6: Final answer
    x = 122,628,827.70

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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.