Home / 42,112,840.40-63,114,223.80-30,480,379.28

Finding the Fourth Proportional to 42,112,840.40, 63,114,223.80 and 30,480,379.28

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Solution

The fourth proportional to 42,112,840.40, 63,114,223.80 and 30,480,379.28 is: 45,680,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,112,840.40 : 63,114,223.80 = 30,480,379.28 : x
  2. Step 2: Convert to fraction form
    42,112,840.40/63,114,223.80 = 30,480,379.28/x
  3. Step 3: Cross multiply
    42,112,840.40x = 63,114,223.80 × 30,480,379.28
  4. Step 4: Simplify right side
    42,112,840.40x = 1,923,745,479,386,802.75
  5. Step 5: Solve for x
    x = 1,923,745,479,386,802.75/42,112,840.40
  6. Step 6: Final answer
    x = 45,680,734.45

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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.