Home / 280,495,937.40-420,743,899.62-76,024,008.60

Finding the Fourth Proportional to 280,495,937.40, 420,743,899.62 and 76,024,008.60

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Solution

The fourth proportional to 280,495,937.40, 420,743,899.62 and 76,024,008.60 is: 114,036,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,495,937.40 : 420,743,899.62 = 76,024,008.60 : x
  2. Step 2: Convert to fraction form
    280,495,937.40/420,743,899.62 = 76,024,008.60/x
  3. Step 3: Cross multiply
    280,495,937.40x = 420,743,899.62 × 76,024,008.60
  4. Step 4: Simplify right side
    280,495,937.40x = 31,986,637,843,108,416
  5. Step 5: Solve for x
    x = 31,986,637,843,108,416/280,495,937.40
  6. Step 6: Final answer
    x = 114,036,011.14

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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.