Home / 863,011,311.40-1,294,684,928.70-249,615,548.20

Finding the Fourth Proportional to 863,011,311.40, 1,294,684,928.70 and 249,615,548.20

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Solution

The fourth proportional to 863,011,311.40, 1,294,684,928.70 and 249,615,548.20 is: 374,471,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,011,311.40 : 1,294,684,928.70 = 249,615,548.20 : x
  2. Step 2: Convert to fraction form
    863,011,311.40/1,294,684,928.70 = 249,615,548.20/x
  3. Step 3: Cross multiply
    863,011,311.40x = 1,294,684,928.70 × 249,615,548.20
  4. Step 4: Simplify right side
    863,011,311.40x = 323,173,488,223,728,384
  5. Step 5: Solve for x
    x = 323,173,488,223,728,384/863,011,311.40
  6. Step 6: Final answer
    x = 374,471,903.15

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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.