Home / 99,320,356.40-148,985,200.20-31,165,271.60

Finding the Fourth Proportional to 99,320,356.40, 148,985,200.20 and 31,165,271.60

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Solution

The fourth proportional to 99,320,356.40, 148,985,200.20 and 31,165,271.60 is: 46,749,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,320,356.40 : 148,985,200.20 = 31,165,271.60 : x
  2. Step 2: Convert to fraction form
    99,320,356.40/148,985,200.20 = 31,165,271.60/x
  3. Step 3: Cross multiply
    99,320,356.40x = 148,985,200.20 × 31,165,271.60
  4. Step 4: Simplify right side
    99,320,356.40x = 4,643,164,228,613,374
  5. Step 5: Solve for x
    x = 4,643,164,228,613,374/99,320,356.40
  6. Step 6: Final answer
    x = 46,749,371.40

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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.