Home / 129,908,363.60-179,273,693.40-70,369,780.16

Finding the Fourth Proportional to 129,908,363.60, 179,273,693.40 and 70,369,780.16

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Solution

The fourth proportional to 129,908,363.60, 179,273,693.40 and 70,369,780.16 is: 97,110,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,908,363.60 : 179,273,693.40 = 70,369,780.16 : x
  2. Step 2: Convert to fraction form
    129,908,363.60/179,273,693.40 = 70,369,780.16/x
  3. Step 3: Cross multiply
    129,908,363.60x = 179,273,693.40 × 70,369,780.16
  4. Step 4: Simplify right side
    129,908,363.60x = 12,615,450,393,029,242
  5. Step 5: Solve for x
    x = 12,615,450,393,029,242/129,908,363.60
  6. Step 6: Final answer
    x = 97,110,378.76

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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.