Home / 280,038,462.40-420,057,693.60-242,289,726.40

Finding the Fourth Proportional to 280,038,462.40, 420,057,693.60 and 242,289,726.40

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Solution

The fourth proportional to 280,038,462.40, 420,057,693.60 and 242,289,726.40 is: 363,434,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,038,462.40 : 420,057,693.60 = 242,289,726.40 : x
  2. Step 2: Convert to fraction form
    280,038,462.40/420,057,693.60 = 242,289,726.40/x
  3. Step 3: Cross multiply
    280,038,462.40x = 420,057,693.60 × 242,289,726.40
  4. Step 4: Simplify right side
    280,038,462.40x = 101,775,663,654,559,040
  5. Step 5: Solve for x
    x = 101,775,663,654,559,040/280,038,462.40
  6. Step 6: Final answer
    x = 363,434,589.60

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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.