Home / 70,130,531.70-96,779,851.38-39,190,692.78

Finding the Fourth Proportional to 70,130,531.70, 96,779,851.38 and 39,190,692.78

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Solution

The fourth proportional to 70,130,531.70, 96,779,851.38 and 39,190,692.78 is: 54,082,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,130,531.70 : 96,779,851.38 = 39,190,692.78 : x
  2. Step 2: Convert to fraction form
    70,130,531.70/96,779,851.38 = 39,190,692.78/x
  3. Step 3: Cross multiply
    70,130,531.70x = 96,779,851.38 × 39,190,692.78
  4. Step 4: Simplify right side
    70,130,531.70x = 3,792,869,422,727,639
  5. Step 5: Solve for x
    x = 3,792,869,422,727,639/70,130,531.70
  6. Step 6: Final answer
    x = 54,082,998.24

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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.