Home / 415,803,631.60-623,705,447.40-211,730,287.60

Finding the Fourth Proportional to 415,803,631.60, 623,705,447.40 and 211,730,287.60

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Solution

The fourth proportional to 415,803,631.60, 623,705,447.40 and 211,730,287.60 is: 317,595,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,803,631.60 : 623,705,447.40 = 211,730,287.60 : x
  2. Step 2: Convert to fraction form
    415,803,631.60/623,705,447.40 = 211,730,287.60/x
  3. Step 3: Cross multiply
    415,803,631.60x = 623,705,447.40 × 211,730,287.60
  4. Step 4: Simplify right side
    415,803,631.60x = 132,057,333,755,688,656
  5. Step 5: Solve for x
    x = 132,057,333,755,688,656/415,803,631.60
  6. Step 6: Final answer
    x = 317,595,431.40

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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.