Home / 19,854,739.80-29,750,616.90-13,115,280.60

Finding the Fourth Proportional to 19,854,739.80, 29,750,616.90 and 13,115,280.60

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Solution

The fourth proportional to 19,854,739.80, 29,750,616.90 and 13,115,280.60 is: 19,652,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854,739.80 : 29,750,616.90 = 13,115,280.60 : x
  2. Step 2: Convert to fraction form
    19,854,739.80/29,750,616.90 = 13,115,280.60/x
  3. Step 3: Cross multiply
    19,854,739.80x = 29,750,616.90 × 13,115,280.60
  4. Step 4: Simplify right side
    19,854,739.80x = 390,187,688,666,602.12
  5. Step 5: Solve for x
    x = 390,187,688,666,602.12/19,854,739.80
  6. Step 6: Final answer
    x = 19,652,117.96

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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.