Home / 85,604,011.26-128,330,434.14-65,499,007.74

Finding the Fourth Proportional to 85,604,011.26, 128,330,434.14 and 65,499,007.74

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Solution

The fourth proportional to 85,604,011.26, 128,330,434.14 and 65,499,007.74 is: 98,190,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,604,011.26 : 128,330,434.14 = 65,499,007.74 : x
  2. Step 2: Convert to fraction form
    85,604,011.26/128,330,434.14 = 65,499,007.74/x
  3. Step 3: Cross multiply
    85,604,011.26x = 128,330,434.14 × 65,499,007.74
  4. Step 4: Simplify right side
    85,604,011.26x = 8,405,516,099,013,421
  5. Step 5: Solve for x
    x = 8,405,516,099,013,421/85,604,011.26
  6. Step 6: Final answer
    x = 98,190,680.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.