Home / 65,876,328.30-98,835,143.43-39,643,787.33

Finding the Fourth Proportional to 65,876,328.30, 98,835,143.43 and 39,643,787.33

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Solution

The fourth proportional to 65,876,328.30, 98,835,143.43 and 39,643,787.33 is: 59,478,108.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876,328.30 : 98,835,143.43 = 39,643,787.33 : x
  2. Step 2: Convert to fraction form
    65,876,328.30/98,835,143.43 = 39,643,787.33/x
  3. Step 3: Cross multiply
    65,876,328.30x = 98,835,143.43 × 39,643,787.33
  4. Step 4: Simplify right side
    65,876,328.30x = 3,918,199,406,852,149.50
  5. Step 5: Solve for x
    x = 3,918,199,406,852,149.50/65,876,328.30
  6. Step 6: Final answer
    x = 59,478,108.57

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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.