Home / 918,006,723.60-1,375,152,139.80-571,898,000.40

Finding the Fourth Proportional to 918,006,723.60, 1,375,152,139.80 and 571,898,000.40

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Solution

The fourth proportional to 918,006,723.60, 1,375,152,139.80 and 571,898,000.40 is: 856,689,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,006,723.60 : 1,375,152,139.80 = 571,898,000.40 : x
  2. Step 2: Convert to fraction form
    918,006,723.60/1,375,152,139.80 = 571,898,000.40/x
  3. Step 3: Cross multiply
    918,006,723.60x = 1,375,152,139.80 × 571,898,000.40
  4. Step 4: Simplify right side
    918,006,723.60x = 786,446,758,997,401,216
  5. Step 5: Solve for x
    x = 786,446,758,997,401,216/918,006,723.60
  6. Step 6: Final answer
    x = 856,689,541.35

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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.