Home / 280,589,721.40-420,884,582.10-127,534,713.40

Finding the Fourth Proportional to 280,589,721.40, 420,884,582.10 and 127,534,713.40

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Solution

The fourth proportional to 280,589,721.40, 420,884,582.10 and 127,534,713.40 is: 191,302,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,589,721.40 : 420,884,582.10 = 127,534,713.40 : x
  2. Step 2: Convert to fraction form
    280,589,721.40/420,884,582.10 = 127,534,713.40/x
  3. Step 3: Cross multiply
    280,589,721.40x = 420,884,582.10 × 127,534,713.40
  4. Step 4: Simplify right side
    280,589,721.40x = 53,677,394,552,602,272
  5. Step 5: Solve for x
    x = 53,677,394,552,602,272/280,589,721.40
  6. Step 6: Final answer
    x = 191,302,070.10

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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.