Home / 991,770,648.89-1,487,655,751.90-361,549,954.23

Finding the Fourth Proportional to 991,770,648.89, 1,487,655,751.90 and 361,549,954.23

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Solution

The fourth proportional to 991,770,648.89, 1,487,655,751.90 and 361,549,954.23 is: 542,324,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,770,648.89 : 1,487,655,751.90 = 361,549,954.23 : x
  2. Step 2: Convert to fraction form
    991,770,648.89/1,487,655,751.90 = 361,549,954.23/x
  3. Step 3: Cross multiply
    991,770,648.89x = 1,487,655,751.90 × 361,549,954.23
  4. Step 4: Simplify right side
    991,770,648.89x = 537,861,869,009,441,280
  5. Step 5: Solve for x
    x = 537,861,869,009,441,280/991,770,648.89
  6. Step 6: Final answer
    x = 542,324,850.62

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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.