Home / 42,629,802.40-63,871,220.40-19,864,007.20

Finding the Fourth Proportional to 42,629,802.40, 63,871,220.40 and 19,864,007.20

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Solution

The fourth proportional to 42,629,802.40, 63,871,220.40 and 19,864,007.20 is: 29,761,770.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,629,802.40 : 63,871,220.40 = 19,864,007.20 : x
  2. Step 2: Convert to fraction form
    42,629,802.40/63,871,220.40 = 19,864,007.20/x
  3. Step 3: Cross multiply
    42,629,802.40x = 63,871,220.40 × 19,864,007.20
  4. Step 4: Simplify right side
    42,629,802.40x = 1,268,738,381,898,386.75
  5. Step 5: Solve for x
    x = 1,268,738,381,898,386.75/42,629,802.40
  6. Step 6: Final answer
    x = 29,761,770.18

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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.