Home / 1,327,103,998.40-1,990,655,997.60-842,976,459.20

Finding the Fourth Proportional to 1,327,103,998.40, 1,990,655,997.60 and 842,976,459.20

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Solution

The fourth proportional to 1,327,103,998.40, 1,990,655,997.60 and 842,976,459.20 is: 1,264,464,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,103,998.40 : 1,990,655,997.60 = 842,976,459.20 : x
  2. Step 2: Convert to fraction form
    1,327,103,998.40/1,990,655,997.60 = 842,976,459.20/x
  3. Step 3: Cross multiply
    1,327,103,998.40x = 1,990,655,997.60 × 842,976,459.20
  4. Step 4: Simplify right side
    1,327,103,998.40x = 1,678,076,144,342,091,776
  5. Step 5: Solve for x
    x = 1,678,076,144,342,091,776/1,327,103,998.40
  6. Step 6: Final answer
    x = 1,264,464,688.80

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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.