Home / 918,427,378.83-1,267,393,276.72-542,205,158.73

Finding the Fourth Proportional to 918,427,378.83, 1,267,393,276.72 and 542,205,158.73

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Solution

The fourth proportional to 918,427,378.83, 1,267,393,276.72 and 542,205,158.73 is: 748,221,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,427,378.83 : 1,267,393,276.72 = 542,205,158.73 : x
  2. Step 2: Convert to fraction form
    918,427,378.83/1,267,393,276.72 = 542,205,158.73/x
  3. Step 3: Cross multiply
    918,427,378.83x = 1,267,393,276.72 × 542,205,158.73
  4. Step 4: Simplify right side
    918,427,378.83x = 687,187,172,777,302,400
  5. Step 5: Solve for x
    x = 687,187,172,777,302,400/918,427,378.83
  6. Step 6: Final answer
    x = 748,221,567.23

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1.5x scale

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.