Home / 460,655,645.40-690,983,468.10-149,762,660.40

Finding the Fourth Proportional to 460,655,645.40, 690,983,468.10 and 149,762,660.40

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Solution

The fourth proportional to 460,655,645.40, 690,983,468.10 and 149,762,660.40 is: 224,643,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,655,645.40 : 690,983,468.10 = 149,762,660.40 : x
  2. Step 2: Convert to fraction form
    460,655,645.40/690,983,468.10 = 149,762,660.40/x
  3. Step 3: Cross multiply
    460,655,645.40x = 690,983,468.10 × 149,762,660.40
  4. Step 4: Simplify right side
    460,655,645.40x = 103,483,522,475,074,544
  5. Step 5: Solve for x
    x = 103,483,522,475,074,544/460,655,645.40
  6. Step 6: Final answer
    x = 224,643,990.60

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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.