Home / 648,290,718.70-972,432,825.73-157,003,975.17

Finding the Fourth Proportional to 648,290,718.70, 972,432,825.73 and 157,003,975.17

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Solution

The fourth proportional to 648,290,718.70, 972,432,825.73 and 157,003,975.17 is: 235,505,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,290,718.70 : 972,432,825.73 = 157,003,975.17 : x
  2. Step 2: Convert to fraction form
    648,290,718.70/972,432,825.73 = 157,003,975.17/x
  3. Step 3: Cross multiply
    648,290,718.70x = 972,432,825.73 × 157,003,975.17
  4. Step 4: Simplify right side
    648,290,718.70x = 152,675,819,225,013,344
  5. Step 5: Solve for x
    x = 152,675,819,225,013,344/648,290,718.70
  6. Step 6: Final answer
    x = 235,505,175.10

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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.