Home / 103,686,643.30-155,529,964.95-65,223,436.90

Finding the Fourth Proportional to 103,686,643.30, 155,529,964.95 and 65,223,436.90

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Solution

The fourth proportional to 103,686,643.30, 155,529,964.95 and 65,223,436.90 is: 97,835,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686,643.30 : 155,529,964.95 = 65,223,436.90 : x
  2. Step 2: Convert to fraction form
    103,686,643.30/155,529,964.95 = 65,223,436.90/x
  3. Step 3: Cross multiply
    103,686,643.30x = 155,529,964.95 × 65,223,436.90
  4. Step 4: Simplify right side
    103,686,643.30x = 10,144,198,854,975,536
  5. Step 5: Solve for x
    x = 10,144,198,854,975,536/103,686,643.30
  6. Step 6: Final answer
    x = 97,835,155.35

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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.