Home / 130,404,290.40-195,732,406.80-79,385,954.40

Finding the Fourth Proportional to 130,404,290.40, 195,732,406.80 and 79,385,954.40

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Solution

The fourth proportional to 130,404,290.40, 195,732,406.80 and 79,385,954.40 is: 119,155,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,404,290.40 : 195,732,406.80 = 79,385,954.40 : x
  2. Step 2: Convert to fraction form
    130,404,290.40/195,732,406.80 = 79,385,954.40/x
  3. Step 3: Cross multiply
    130,404,290.40x = 195,732,406.80 × 79,385,954.40
  4. Step 4: Simplify right side
    130,404,290.40x = 15,538,403,920,827,052
  5. Step 5: Solve for x
    x = 15,538,403,920,827,052/130,404,290.40
  6. Step 6: Final answer
    x = 119,155,618.83

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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.