Home / 145,158,272.70-217,737,409.05-99,808,640.70

Finding the Fourth Proportional to 145,158,272.70, 217,737,409.05 and 99,808,640.70

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Solution

The fourth proportional to 145,158,272.70, 217,737,409.05 and 99,808,640.70 is: 149,712,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158,272.70 : 217,737,409.05 = 99,808,640.70 : x
  2. Step 2: Convert to fraction form
    145,158,272.70/217,737,409.05 = 99,808,640.70/x
  3. Step 3: Cross multiply
    145,158,272.70x = 217,737,409.05 × 99,808,640.70
  4. Step 4: Simplify right side
    145,158,272.70x = 21,732,074,826,820,380
  5. Step 5: Solve for x
    x = 21,732,074,826,820,380/145,158,272.70
  6. Step 6: Final answer
    x = 149,712,961.05

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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.