Home / 1,521,766,979.28-2,100,038,735.96-927,051,432.56

Finding the Fourth Proportional to 1,521,766,979.28, 2,100,038,735.96 and 927,051,432.56

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Solution

The fourth proportional to 1,521,766,979.28, 2,100,038,735.96 and 927,051,432.56 is: 1,279,331,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,766,979.28 : 2,100,038,735.96 = 927,051,432.56 : x
  2. Step 2: Convert to fraction form
    1,521,766,979.28/2,100,038,735.96 = 927,051,432.56/x
  3. Step 3: Cross multiply
    1,521,766,979.28x = 2,100,038,735.96 × 927,051,432.56
  4. Step 4: Simplify right side
    1,521,766,979.28x = 1,946,843,918,603,209,472
  5. Step 5: Solve for x
    x = 1,946,843,918,603,209,472/1,521,766,979.28
  6. Step 6: Final answer
    x = 1,279,331,162.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.