Home / 129,301,208.40-178,439,446.98-70,567,643.04

Finding the Fourth Proportional to 129,301,208.40, 178,439,446.98 and 70,567,643.04

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Solution

The fourth proportional to 129,301,208.40, 178,439,446.98 and 70,567,643.04 is: 97,385,410.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,301,208.40 : 178,439,446.98 = 70,567,643.04 : x
  2. Step 2: Convert to fraction form
    129,301,208.40/178,439,446.98 = 70,567,643.04/x
  3. Step 3: Cross multiply
    129,301,208.40x = 178,439,446.98 × 70,567,643.04
  4. Step 4: Simplify right side
    129,301,208.40x = 12,592,051,198,739,646
  5. Step 5: Solve for x
    x = 12,592,051,198,739,646/129,301,208.40
  6. Step 6: Final answer
    x = 97,385,410.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.