Home / 108,683,112.80-163,024,669.20-72,403,407.20

Finding the Fourth Proportional to 108,683,112.80, 163,024,669.20 and 72,403,407.20

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Solution

The fourth proportional to 108,683,112.80, 163,024,669.20 and 72,403,407.20 is: 108,605,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,683,112.80 : 163,024,669.20 = 72,403,407.20 : x
  2. Step 2: Convert to fraction form
    108,683,112.80/163,024,669.20 = 72,403,407.20/x
  3. Step 3: Cross multiply
    108,683,112.80x = 163,024,669.20 × 72,403,407.20
  4. Step 4: Simplify right side
    108,683,112.80x = 11,803,541,507,732,898
  5. Step 5: Solve for x
    x = 11,803,541,507,732,898/108,683,112.80
  6. Step 6: Final answer
    x = 108,605,110.80

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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.