Home / 715,826,378.72-1,073,400,319.02-249,325,106.96

Finding the Fourth Proportional to 715,826,378.72, 1,073,400,319.02 and 249,325,106.96

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Solution

The fourth proportional to 715,826,378.72, 1,073,400,319.02 and 249,325,106.96 is: 373,869,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,826,378.72 : 1,073,400,319.02 = 249,325,106.96 : x
  2. Step 2: Convert to fraction form
    715,826,378.72/1,073,400,319.02 = 249,325,106.96/x
  3. Step 3: Cross multiply
    715,826,378.72x = 1,073,400,319.02 × 249,325,106.96
  4. Step 4: Simplify right side
    715,826,378.72x = 267,625,649,350,559,616
  5. Step 5: Solve for x
    x = 267,625,649,350,559,616/715,826,378.72
  6. Step 6: Final answer
    x = 373,869,498.68

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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.