Home / 85,537,206.40-128,156,510.40-73,593,270.40

Finding the Fourth Proportional to 85,537,206.40, 128,156,510.40 and 73,593,270.40

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Solution

The fourth proportional to 85,537,206.40, 128,156,510.40 and 73,593,270.40 is: 110,261,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537,206.40 : 128,156,510.40 = 73,593,270.40 : x
  2. Step 2: Convert to fraction form
    85,537,206.40/128,156,510.40 = 73,593,270.40/x
  3. Step 3: Cross multiply
    85,537,206.40x = 128,156,510.40 × 73,593,270.40
  4. Step 4: Simplify right side
    85,537,206.40x = 9,431,456,723,387,614
  5. Step 5: Solve for x
    x = 9,431,456,723,387,614/85,537,206.40
  6. Step 6: Final answer
    x = 110,261,453.70

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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.