Home / 1,259,713,228.20-1,889,569,842.30-871,427,999.40

Finding the Fourth Proportional to 1,259,713,228.20, 1,889,569,842.30 and 871,427,999.40

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Solution

The fourth proportional to 1,259,713,228.20, 1,889,569,842.30 and 871,427,999.40 is: 1,307,141,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,228.20 : 1,889,569,842.30 = 871,427,999.40 : x
  2. Step 2: Convert to fraction form
    1,259,713,228.20/1,889,569,842.30 = 871,427,999.40/x
  3. Step 3: Cross multiply
    1,259,713,228.20x = 1,889,569,842.30 × 871,427,999.40
  4. Step 4: Simplify right side
    1,259,713,228.20x = 1,646,624,067,402,062,336
  5. Step 5: Solve for x
    x = 1,646,624,067,402,062,336/1,259,713,228.20
  6. Step 6: Final answer
    x = 1,307,141,999.10

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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.