Home / 142,012,444.83-195,975,266.00-79,289,503.87

Finding the Fourth Proportional to 142,012,444.83, 195,975,266.00 and 79,289,503.87

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Solution

The fourth proportional to 142,012,444.83, 195,975,266.00 and 79,289,503.87 is: 109,418,450.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,012,444.83 : 195,975,266.00 = 79,289,503.87 : x
  2. Step 2: Convert to fraction form
    142,012,444.83/195,975,266.00 = 79,289,503.87/x
  3. Step 3: Cross multiply
    142,012,444.83x = 195,975,266.00 × 79,289,503.87
  4. Step 4: Simplify right side
    142,012,444.83x = 15,538,781,612,631,842
  5. Step 5: Solve for x
    x = 15,538,781,612,631,842/142,012,444.83
  6. Step 6: Final answer
    x = 109,418,450.13

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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.