Home / 20,851,681.80-31,280,475.15-6,473,250.30

Finding the Fourth Proportional to 20,851,681.80, 31,280,475.15 and 6,473,250.30

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Solution

The fourth proportional to 20,851,681.80, 31,280,475.15 and 6,473,250.30 is: 9,710,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851,681.80 : 31,280,475.15 = 6,473,250.30 : x
  2. Step 2: Convert to fraction form
    20,851,681.80/31,280,475.15 = 6,473,250.30/x
  3. Step 3: Cross multiply
    20,851,681.80x = 31,280,475.15 × 6,473,250.30
  4. Step 4: Simplify right side
    20,851,681.80x = 202,486,345,148,880.03
  5. Step 5: Solve for x
    x = 202,486,345,148,880.03/20,851,681.80
  6. Step 6: Final answer
    x = 9,710,792.02

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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.