Home / 118,088,085.60-177,132,128.40-72,502,063.20

Finding the Fourth Proportional to 118,088,085.60, 177,132,128.40 and 72,502,063.20

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Solution

The fourth proportional to 118,088,085.60, 177,132,128.40 and 72,502,063.20 is: 108,753,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,088,085.60 : 177,132,128.40 = 72,502,063.20 : x
  2. Step 2: Convert to fraction form
    118,088,085.60/177,132,128.40 = 72,502,063.20/x
  3. Step 3: Cross multiply
    118,088,085.60x = 177,132,128.40 × 72,502,063.20
  4. Step 4: Simplify right side
    118,088,085.60x = 12,842,444,768,007,316
  5. Step 5: Solve for x
    x = 12,842,444,768,007,316/118,088,085.60
  6. Step 6: Final answer
    x = 108,753,094.80

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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.