Home / 108,871,976.80-163,119,008.40-70,513,746.40

Finding the Fourth Proportional to 108,871,976.80, 163,119,008.40 and 70,513,746.40

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Solution

The fourth proportional to 108,871,976.80, 163,119,008.40 and 70,513,746.40 is: 105,648,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871,976.80 : 163,119,008.40 = 70,513,746.40 : x
  2. Step 2: Convert to fraction form
    108,871,976.80/163,119,008.40 = 70,513,746.40/x
  3. Step 3: Cross multiply
    108,871,976.80x = 163,119,008.40 × 70,513,746.40
  4. Step 4: Simplify right side
    108,871,976.80x = 11,502,132,391,337,072
  5. Step 5: Solve for x
    x = 11,502,132,391,337,072/108,871,976.80
  6. Step 6: Final answer
    x = 105,648,236.85

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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.