Home / 1,011,010,999.20-1,516,516,498.80-827,344,989.60

Finding the Fourth Proportional to 1,011,010,999.20, 1,516,516,498.80 and 827,344,989.60

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Solution

The fourth proportional to 1,011,010,999.20, 1,516,516,498.80 and 827,344,989.60 is: 1,241,017,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,010,999.20 : 1,516,516,498.80 = 827,344,989.60 : x
  2. Step 2: Convert to fraction form
    1,011,010,999.20/1,516,516,498.80 = 827,344,989.60/x
  3. Step 3: Cross multiply
    1,011,010,999.20x = 1,516,516,498.80 × 827,344,989.60
  4. Step 4: Simplify right side
    1,011,010,999.20x = 1,254,682,326,927,914,496
  5. Step 5: Solve for x
    x = 1,254,682,326,927,914,496/1,011,010,999.20
  6. Step 6: Final answer
    x = 1,241,017,484.40

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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.