Home / 1,020,778,846.60-1,530,160,500.30-502,785,272.20

Finding the Fourth Proportional to 1,020,778,846.60, 1,530,160,500.30 and 502,785,272.20

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Solution

The fourth proportional to 1,020,778,846.60, 1,530,160,500.30 and 502,785,272.20 is: 753,681,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,778,846.60 : 1,530,160,500.30 = 502,785,272.20 : x
  2. Step 2: Convert to fraction form
    1,020,778,846.60/1,530,160,500.30 = 502,785,272.20/x
  3. Step 3: Cross multiply
    1,020,778,846.60x = 1,530,160,500.30 × 502,785,272.20
  4. Step 4: Simplify right side
    1,020,778,846.60x = 769,342,163,653,023,616
  5. Step 5: Solve for x
    x = 769,342,163,653,023,616/1,020,778,846.60
  6. Step 6: Final answer
    x = 753,681,530.74

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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.