Home / 118,342,285.60-177,513,428.40-66,686,220.40

Finding the Fourth Proportional to 118,342,285.60, 177,513,428.40 and 66,686,220.40

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Solution

The fourth proportional to 118,342,285.60, 177,513,428.40 and 66,686,220.40 is: 100,029,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,342,285.60 : 177,513,428.40 = 66,686,220.40 : x
  2. Step 2: Convert to fraction form
    118,342,285.60/177,513,428.40 = 66,686,220.40/x
  3. Step 3: Cross multiply
    118,342,285.60x = 177,513,428.40 × 66,686,220.40
  4. Step 4: Simplify right side
    118,342,285.60x = 11,837,699,610,242,020
  5. Step 5: Solve for x
    x = 11,837,699,610,242,020/118,342,285.60
  6. Step 6: Final answer
    x = 100,029,330.60

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Similar ratio
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1.5x scale

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.