Home / 8,160,444,000.80-12,240,666,001.20-2,989,914,106.40

Finding the Fourth Proportional to 8,160,444,000.80, 12,240,666,001.20 and 2,989,914,106.40

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Solution

The fourth proportional to 8,160,444,000.80, 12,240,666,001.20 and 2,989,914,106.40 is: 4,484,871,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160,444,000.80 : 12,240,666,001.20 = 2,989,914,106.40 : x
  2. Step 2: Convert to fraction form
    8,160,444,000.80/12,240,666,001.20 = 2,989,914,106.40/x
  3. Step 3: Cross multiply
    8,160,444,000.80x = 12,240,666,001.20 × 2,989,914,106.40
  4. Step 4: Simplify right side
    8,160,444,000.80x = 36,598,539,948,718,764,032
  5. Step 5: Solve for x
    x = 36,598,539,948,718,764,032/8,160,444,000.80
  6. Step 6: Final answer
    x = 4,484,871,159.60

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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.