Home / 605,556,037.20-908,334,055.80-398,931,776.40

Finding the Fourth Proportional to 605,556,037.20, 908,334,055.80 and 398,931,776.40

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Solution

The fourth proportional to 605,556,037.20, 908,334,055.80 and 398,931,776.40 is: 598,397,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,556,037.20 : 908,334,055.80 = 398,931,776.40 : x
  2. Step 2: Convert to fraction form
    605,556,037.20/908,334,055.80 = 398,931,776.40/x
  3. Step 3: Cross multiply
    605,556,037.20x = 908,334,055.80 × 398,931,776.40
  4. Step 4: Simplify right side
    605,556,037.20x = 362,363,318,444,910,656
  5. Step 5: Solve for x
    x = 362,363,318,444,910,656/605,556,037.20
  6. Step 6: Final answer
    x = 598,397,664.60

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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.