Home / 88,756,443.20-133,134,664.80-85,355,220.80

Finding the Fourth Proportional to 88,756,443.20, 133,134,664.80 and 85,355,220.80

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Solution

The fourth proportional to 88,756,443.20, 133,134,664.80 and 85,355,220.80 is: 128,032,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,756,443.20 : 133,134,664.80 = 85,355,220.80 : x
  2. Step 2: Convert to fraction form
    88,756,443.20/133,134,664.80 = 85,355,220.80/x
  3. Step 3: Cross multiply
    88,756,443.20x = 133,134,664.80 × 85,355,220.80
  4. Step 4: Simplify right side
    88,756,443.20x = 11,363,738,710,137,988
  5. Step 5: Solve for x
    x = 11,363,738,710,137,988/88,756,443.20
  6. Step 6: Final answer
    x = 128,032,831.20

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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.