Home / 721,336,533.38-994,931,250.86-661,989,475.03

Finding the Fourth Proportional to 721,336,533.38, 994,931,250.86 and 661,989,475.03

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Solution

The fourth proportional to 721,336,533.38, 994,931,250.86 and 661,989,475.03 is: 913,074,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,336,533.38 : 994,931,250.86 = 661,989,475.03 : x
  2. Step 2: Convert to fraction form
    721,336,533.38/994,931,250.86 = 661,989,475.03/x
  3. Step 3: Cross multiply
    721,336,533.38x = 994,931,250.86 × 661,989,475.03
  4. Step 4: Simplify right side
    721,336,533.38x = 658,634,016,439,468,032
  5. Step 5: Solve for x
    x = 658,634,016,439,468,032/721,336,533.38
  6. Step 6: Final answer
    x = 913,074,530.35

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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.