Home / 458,498,686.40-687,748,029.60-295,240,011.20

Finding the Fourth Proportional to 458,498,686.40, 687,748,029.60 and 295,240,011.20

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Solution

The fourth proportional to 458,498,686.40, 687,748,029.60 and 295,240,011.20 is: 442,860,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,498,686.40 : 687,748,029.60 = 295,240,011.20 : x
  2. Step 2: Convert to fraction form
    458,498,686.40/687,748,029.60 = 295,240,011.20/x
  3. Step 3: Cross multiply
    458,498,686.40x = 687,748,029.60 × 295,240,011.20
  4. Step 4: Simplify right side
    458,498,686.40x = 203,050,735,961,881,920
  5. Step 5: Solve for x
    x = 203,050,735,961,881,920/458,498,686.40
  6. Step 6: Final answer
    x = 442,860,016.80

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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.