Home / 641,338,765.60-962,008,148.40-549,505,760.80

Finding the Fourth Proportional to 641,338,765.60, 962,008,148.40 and 549,505,760.80

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Solution

The fourth proportional to 641,338,765.60, 962,008,148.40 and 549,505,760.80 is: 824,258,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,338,765.60 : 962,008,148.40 = 549,505,760.80 : x
  2. Step 2: Convert to fraction form
    641,338,765.60/962,008,148.40 = 549,505,760.80/x
  3. Step 3: Cross multiply
    641,338,765.60x = 962,008,148.40 × 549,505,760.80
  4. Step 4: Simplify right side
    641,338,765.60x = 528,629,019,482,341,248
  5. Step 5: Solve for x
    x = 528,629,019,482,341,248/641,338,765.60
  6. Step 6: Final answer
    x = 824,258,641.20

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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.