Home / 868,968,002.60-1,303,452,003.90-828,657,218.60

Finding the Fourth Proportional to 868,968,002.60, 1,303,452,003.90 and 828,657,218.60

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Solution

The fourth proportional to 868,968,002.60, 1,303,452,003.90 and 828,657,218.60 is: 1,242,985,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,968,002.60 : 1,303,452,003.90 = 828,657,218.60 : x
  2. Step 2: Convert to fraction form
    868,968,002.60/1,303,452,003.90 = 828,657,218.60/x
  3. Step 3: Cross multiply
    868,968,002.60x = 1,303,452,003.90 × 828,657,218.60
  4. Step 4: Simplify right side
    868,968,002.60x = 1,080,114,912,130,370,432
  5. Step 5: Solve for x
    x = 1,080,114,912,130,370,432/868,968,002.60
  6. Step 6: Final answer
    x = 1,242,985,827.90

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Double scale
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Similar ratio
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1.5x scale

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.