Home / 55,655,140.80-83,486,858.40-19,748,683.20

Finding the Fourth Proportional to 55,655,140.80, 83,486,858.40 and 19,748,683.20

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Solution

The fourth proportional to 55,655,140.80, 83,486,858.40 and 19,748,683.20 is: 29,624,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655,140.80 : 83,486,858.40 = 19,748,683.20 : x
  2. Step 2: Convert to fraction form
    55,655,140.80/83,486,858.40 = 19,748,683.20/x
  3. Step 3: Cross multiply
    55,655,140.80x = 83,486,858.40 × 19,748,683.20
  4. Step 4: Simplify right side
    55,655,140.80x = 1,648,755,517,904,859
  5. Step 5: Solve for x
    x = 1,648,755,517,904,859/55,655,140.80
  6. Step 6: Final answer
    x = 29,624,496.39

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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.