Home / 393,069,501.60-542,416,979.76-214,442,754.72

Finding the Fourth Proportional to 393,069,501.60, 542,416,979.76 and 214,442,754.72

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Solution

The fourth proportional to 393,069,501.60, 542,416,979.76 and 214,442,754.72 is: 295,920,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,069,501.60 : 542,416,979.76 = 214,442,754.72 : x
  2. Step 2: Convert to fraction form
    393,069,501.60/542,416,979.76 = 214,442,754.72/x
  3. Step 3: Cross multiply
    393,069,501.60x = 542,416,979.76 × 214,442,754.72
  4. Step 4: Simplify right side
    393,069,501.60x = 116,317,391,346,636,880
  5. Step 5: Solve for x
    x = 116,317,391,346,636,880/393,069,501.60
  6. Step 6: Final answer
    x = 295,920,672.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.