Home / 86,285,465.80-129,260,237.10-52,105,280.20

Finding the Fourth Proportional to 86,285,465.80, 129,260,237.10 and 52,105,280.20

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Solution

The fourth proportional to 86,285,465.80, 129,260,237.10 and 52,105,280.20 is: 78,056,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285,465.80 : 129,260,237.10 = 52,105,280.20 : x
  2. Step 2: Convert to fraction form
    86,285,465.80/129,260,237.10 = 52,105,280.20/x
  3. Step 3: Cross multiply
    86,285,465.80x = 129,260,237.10 × 52,105,280.20
  4. Step 4: Simplify right side
    86,285,465.80x = 6,735,140,872,813,935
  5. Step 5: Solve for x
    x = 6,735,140,872,813,935/86,285,465.80
  6. Step 6: Final answer
    x = 78,056,493.18

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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.