Home / 57,170,988.46-78,896,463.90-31,065,506.20

Finding the Fourth Proportional to 57,170,988.46, 78,896,463.90 and 31,065,506.20

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Solution

The fourth proportional to 57,170,988.46, 78,896,463.90 and 31,065,506.20 is: 42,870,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,988.46 : 78,896,463.90 = 31,065,506.20 : x
  2. Step 2: Convert to fraction form
    57,170,988.46/78,896,463.90 = 31,065,506.20/x
  3. Step 3: Cross multiply
    57,170,988.46x = 78,896,463.90 × 31,065,506.20
  4. Step 4: Simplify right side
    57,170,988.46x = 2,450,958,588,443,526.50
  5. Step 5: Solve for x
    x = 2,450,958,588,443,526.50/57,170,988.46
  6. Step 6: Final answer
    x = 42,870,670.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.