Home / 118,297,412.80-177,147,520.80-77,688,030.40

Finding the Fourth Proportional to 118,297,412.80, 177,147,520.80 and 77,688,030.40

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Solution

The fourth proportional to 118,297,412.80, 177,147,520.80 and 77,688,030.40 is: 116,335,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,297,412.80 : 177,147,520.80 = 77,688,030.40 : x
  2. Step 2: Convert to fraction form
    118,297,412.80/177,147,520.80 = 77,688,030.40/x
  3. Step 3: Cross multiply
    118,297,412.80x = 177,147,520.80 × 77,688,030.40
  4. Step 4: Simplify right side
    118,297,412.80x = 13,762,241,981,195,034
  5. Step 5: Solve for x
    x = 13,762,241,981,195,034/118,297,412.80
  6. Step 6: Final answer
    x = 116,335,950.68

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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.