Home / 1,030,069,129.20-1,545,103,693.80-485,873,545.20

Finding the Fourth Proportional to 1,030,069,129.20, 1,545,103,693.80 and 485,873,545.20

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Solution

The fourth proportional to 1,030,069,129.20, 1,545,103,693.80 and 485,873,545.20 is: 728,810,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,069,129.20 : 1,545,103,693.80 = 485,873,545.20 : x
  2. Step 2: Convert to fraction form
    1,030,069,129.20/1,545,103,693.80 = 485,873,545.20/x
  3. Step 3: Cross multiply
    1,030,069,129.20x = 1,545,103,693.80 × 485,873,545.20
  4. Step 4: Simplify right side
    1,030,069,129.20x = 750,725,009,408,221,184
  5. Step 5: Solve for x
    x = 750,725,009,408,221,184/1,030,069,129.20
  6. Step 6: Final answer
    x = 728,810,317.80

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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.