Home / 108,683,111.80-163,024,667.70-72,403,406.20

Finding the Fourth Proportional to 108,683,111.80, 163,024,667.70 and 72,403,406.20

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Solution

The fourth proportional to 108,683,111.80, 163,024,667.70 and 72,403,406.20 is: 108,605,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,683,111.80 : 163,024,667.70 = 72,403,406.20 : x
  2. Step 2: Convert to fraction form
    108,683,111.80/163,024,667.70 = 72,403,406.20/x
  3. Step 3: Cross multiply
    108,683,111.80x = 163,024,667.70 × 72,403,406.20
  4. Step 4: Simplify right side
    108,683,111.80x = 11,803,541,236,103,120
  5. Step 5: Solve for x
    x = 11,803,541,236,103,120/108,683,111.80
  6. Step 6: Final answer
    x = 108,605,109.30

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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.