Home / 9,979,139.79-14,970,555.98-3,157,430.25

Finding the Fourth Proportional to 9,979,139.79, 14,970,555.98 and 3,157,430.25

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Solution

The fourth proportional to 9,979,139.79, 14,970,555.98 and 3,157,430.25 is: 4,736,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979,139.79 : 14,970,555.98 = 3,157,430.25 : x
  2. Step 2: Convert to fraction form
    9,979,139.79/14,970,555.98 = 3,157,430.25/x
  3. Step 3: Cross multiply
    9,979,139.79x = 14,970,555.98 × 3,157,430.25
  4. Step 4: Simplify right side
    9,979,139.79x = 47,268,486,362,763.20
  5. Step 5: Solve for x
    x = 47,268,486,362,763.20/9,979,139.79
  6. Step 6: Final answer
    x = 4,736,729.55

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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.