Home / 129,288,494.96-178,421,908.80-70,554,944.60

Finding the Fourth Proportional to 129,288,494.96, 178,421,908.80 and 70,554,944.60

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Solution

The fourth proportional to 129,288,494.96, 178,421,908.80 and 70,554,944.60 is: 97,367,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,288,494.96 : 178,421,908.80 = 70,554,944.60 : x
  2. Step 2: Convert to fraction form
    129,288,494.96/178,421,908.80 = 70,554,944.60/x
  3. Step 3: Cross multiply
    129,288,494.96x = 178,421,908.80 × 70,554,944.60
  4. Step 4: Simplify right side
    129,288,494.96x = 12,588,547,890,810,252
  5. Step 5: Solve for x
    x = 12,588,547,890,810,252/129,288,494.96
  6. Step 6: Final answer
    x = 97,367,889.50

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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.