Home / 69,851,541.18-104,792,648.15-20,663,543.75

Finding the Fourth Proportional to 69,851,541.18, 104,792,648.15 and 20,663,543.75

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Solution

The fourth proportional to 69,851,541.18, 104,792,648.15 and 20,663,543.75 is: 30,999,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851,541.18 : 104,792,648.15 = 20,663,543.75 : x
  2. Step 2: Convert to fraction form
    69,851,541.18/104,792,648.15 = 20,663,543.75/x
  3. Step 3: Cross multiply
    69,851,541.18x = 104,792,648.15 × 20,663,543.75
  4. Step 4: Simplify right side
    69,851,541.18x = 2,165,387,470,039,522.25
  5. Step 5: Solve for x
    x = 2,165,387,470,039,522.25/69,851,541.18
  6. Step 6: Final answer
    x = 30,999,852.45

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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.