Home / 280,038,463.40-420,057,695.10-242,289,727.40

Finding the Fourth Proportional to 280,038,463.40, 420,057,695.10 and 242,289,727.40

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Solution

The fourth proportional to 280,038,463.40, 420,057,695.10 and 242,289,727.40 is: 363,434,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,038,463.40 : 420,057,695.10 = 242,289,727.40 : x
  2. Step 2: Convert to fraction form
    280,038,463.40/420,057,695.10 = 242,289,727.40/x
  3. Step 3: Cross multiply
    280,038,463.40x = 420,057,695.10 × 242,289,727.40
  4. Step 4: Simplify right side
    280,038,463.40x = 101,775,664,438,051,328
  5. Step 5: Solve for x
    x = 101,775,664,438,051,328/280,038,463.40
  6. Step 6: Final answer
    x = 363,434,591.10

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1.5x scale

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.