Home / 1,287,380,247.90-1,931,358,230.55-469,492,548.90

Finding the Fourth Proportional to 1,287,380,247.90, 1,931,358,230.55 and 469,492,548.90

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Solution

The fourth proportional to 1,287,380,247.90, 1,931,358,230.55 and 469,492,548.90 is: 704,343,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,380,247.90 : 1,931,358,230.55 = 469,492,548.90 : x
  2. Step 2: Convert to fraction form
    1,287,380,247.90/1,931,358,230.55 = 469,492,548.90/x
  3. Step 3: Cross multiply
    1,287,380,247.90x = 1,931,358,230.55 × 469,492,548.90
  4. Step 4: Simplify right side
    1,287,380,247.90x = 906,758,298,499,913,344
  5. Step 5: Solve for x
    x = 906,758,298,499,913,344/1,287,380,247.90
  6. Step 6: Final answer
    x = 704,343,802.06

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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.