Home / 898,156,918.80-1,347,235,378.20-438,390,032.40

Finding the Fourth Proportional to 898,156,918.80, 1,347,235,378.20 and 438,390,032.40

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Solution

The fourth proportional to 898,156,918.80, 1,347,235,378.20 and 438,390,032.40 is: 657,585,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,156,918.80 : 1,347,235,378.20 = 438,390,032.40 : x
  2. Step 2: Convert to fraction form
    898,156,918.80/1,347,235,378.20 = 438,390,032.40/x
  3. Step 3: Cross multiply
    898,156,918.80x = 1,347,235,378.20 × 438,390,032.40
  4. Step 4: Simplify right side
    898,156,918.80x = 590,614,561,099,524,224
  5. Step 5: Solve for x
    x = 590,614,561,099,524,224/898,156,918.80
  6. Step 6: Final answer
    x = 657,585,048.60

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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.