Home / 78,986,411.93-118,484,816.57-20,695,517.25

Finding the Fourth Proportional to 78,986,411.93, 118,484,816.57 and 20,695,517.25

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Solution

The fourth proportional to 78,986,411.93, 118,484,816.57 and 20,695,517.25 is: 31,044,638.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,986,411.93 : 118,484,816.57 = 20,695,517.25 : x
  2. Step 2: Convert to fraction form
    78,986,411.93/118,484,816.57 = 20,695,517.25/x
  3. Step 3: Cross multiply
    78,986,411.93x = 118,484,816.57 × 20,695,517.25
  4. Step 4: Simplify right side
    78,986,411.93x = 2,452,104,565,084,043
  5. Step 5: Solve for x
    x = 2,452,104,565,084,043/78,986,411.93
  6. Step 6: Final answer
    x = 31,044,638.00

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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.