Home / 918,006,722.60-1,375,152,138.30-571,897,999.40

Finding the Fourth Proportional to 918,006,722.60, 1,375,152,138.30 and 571,897,999.40

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Solution

The fourth proportional to 918,006,722.60, 1,375,152,138.30 and 571,897,999.40 is: 856,689,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,006,722.60 : 1,375,152,138.30 = 571,897,999.40 : x
  2. Step 2: Convert to fraction form
    918,006,722.60/1,375,152,138.30 = 571,897,999.40/x
  3. Step 3: Cross multiply
    918,006,722.60x = 1,375,152,138.30 × 571,897,999.40
  4. Step 4: Simplify right side
    918,006,722.60x = 786,446,756,764,402,048
  5. Step 5: Solve for x
    x = 786,446,756,764,402,048/918,006,722.60
  6. Step 6: Final answer
    x = 856,689,539.85

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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.