Home / 1,192,807,211.40-1,789,210,817.10-319,543,360.20

Finding the Fourth Proportional to 1,192,807,211.40, 1,789,210,817.10 and 319,543,360.20

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Solution

The fourth proportional to 1,192,807,211.40, 1,789,210,817.10 and 319,543,360.20 is: 479,315,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,807,211.40 : 1,789,210,817.10 = 319,543,360.20 : x
  2. Step 2: Convert to fraction form
    1,192,807,211.40/1,789,210,817.10 = 319,543,360.20/x
  3. Step 3: Cross multiply
    1,192,807,211.40x = 1,789,210,817.10 × 319,543,360.20
  4. Step 4: Simplify right side
    1,192,807,211.40x = 571,730,436,602,321,536
  5. Step 5: Solve for x
    x = 571,730,436,602,321,536/1,192,807,211.40
  6. Step 6: Final answer
    x = 479,315,040.30

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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.