Home / 485,258,045.40-727,887,068.10-347,508,538.20

Finding the Fourth Proportional to 485,258,045.40, 727,887,068.10 and 347,508,538.20

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Solution

The fourth proportional to 485,258,045.40, 727,887,068.10 and 347,508,538.20 is: 521,262,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,258,045.40 : 727,887,068.10 = 347,508,538.20 : x
  2. Step 2: Convert to fraction form
    485,258,045.40/727,887,068.10 = 347,508,538.20/x
  3. Step 3: Cross multiply
    485,258,045.40x = 727,887,068.10 × 347,508,538.20
  4. Step 4: Simplify right side
    485,258,045.40x = 252,946,971,010,114,848
  5. Step 5: Solve for x
    x = 252,946,971,010,114,848/485,258,045.40
  6. Step 6: Final answer
    x = 521,262,807.30

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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.