Home / 79,128,527.40-118,720,784.70-76,329,167.40

Finding the Fourth Proportional to 79,128,527.40, 118,720,784.70 and 76,329,167.40

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Solution

The fourth proportional to 79,128,527.40, 118,720,784.70 and 76,329,167.40 is: 114,520,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,128,527.40 : 118,720,784.70 = 76,329,167.40 : x
  2. Step 2: Convert to fraction form
    79,128,527.40/118,720,784.70 = 76,329,167.40/x
  3. Step 3: Cross multiply
    79,128,527.40x = 118,720,784.70 × 76,329,167.40
  4. Step 4: Simplify right side
    79,128,527.40x = 9,061,858,649,225,660
  5. Step 5: Solve for x
    x = 9,061,858,649,225,660/79,128,527.40
  6. Step 6: Final answer
    x = 114,520,754.36

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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.