Home / 129,638,037.06-178,897,984.74-70,900,520.58

Finding the Fourth Proportional to 129,638,037.06, 178,897,984.74 and 70,900,520.58

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Solution

The fourth proportional to 129,638,037.06, 178,897,984.74 and 70,900,520.58 is: 97,841,347.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,638,037.06 : 178,897,984.74 = 70,900,520.58 : x
  2. Step 2: Convert to fraction form
    129,638,037.06/178,897,984.74 = 70,900,520.58/x
  3. Step 3: Cross multiply
    129,638,037.06x = 178,897,984.74 × 70,900,520.58
  4. Step 4: Simplify right side
    129,638,037.06x = 12,683,960,248,778,896
  5. Step 5: Solve for x
    x = 12,683,960,248,778,896/129,638,037.06
  6. Step 6: Final answer
    x = 97,841,347.62

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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.