Home / 128,176,701.90-176,882,870.91-69,438,946.86

Finding the Fourth Proportional to 128,176,701.90, 176,882,870.91 and 69,438,946.86

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Solution

The fourth proportional to 128,176,701.90, 176,882,870.91 and 69,438,946.86 is: 95,825,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,176,701.90 : 176,882,870.91 = 69,438,946.86 : x
  2. Step 2: Convert to fraction form
    128,176,701.90/176,882,870.91 = 69,438,946.86/x
  3. Step 3: Cross multiply
    128,176,701.90x = 176,882,870.91 × 69,438,946.86
  4. Step 4: Simplify right side
    128,176,701.90x = 12,282,560,273,563,730
  5. Step 5: Solve for x
    x = 12,282,560,273,563,730/128,176,701.90
  6. Step 6: Final answer
    x = 95,825,217.00

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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.