Home / 648,235,706.79-972,356,053.37-156,948,158.01

Finding the Fourth Proportional to 648,235,706.79, 972,356,053.37 and 156,948,158.01

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Solution

The fourth proportional to 648,235,706.79, 972,356,053.37 and 156,948,158.01 is: 235,422,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,235,706.79 : 972,356,053.37 = 156,948,158.01 : x
  2. Step 2: Convert to fraction form
    648,235,706.79/972,356,053.37 = 156,948,158.01/x
  3. Step 3: Cross multiply
    648,235,706.79x = 972,356,053.37 × 156,948,158.01
  4. Step 4: Simplify right side
    648,235,706.79x = 152,609,491,505,510,016
  5. Step 5: Solve for x
    x = 152,609,491,505,510,016/648,235,706.79
  6. Step 6: Final answer
    x = 235,422,840.65

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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.