Home / 1,392,405,945.10-2,088,381,877.99-409,602,637.55

Finding the Fourth Proportional to 1,392,405,945.10, 2,088,381,877.99 and 409,602,637.55

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Solution

The fourth proportional to 1,392,405,945.10, 2,088,381,877.99 and 409,602,637.55 is: 614,337,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,405,945.10 : 2,088,381,877.99 = 409,602,637.55 : x
  2. Step 2: Convert to fraction form
    1,392,405,945.10/2,088,381,877.99 = 409,602,637.55/x
  3. Step 3: Cross multiply
    1,392,405,945.10x = 2,088,381,877.99 × 409,602,637.55
  4. Step 4: Simplify right side
    1,392,405,945.10x = 855,406,725,436,326,272
  5. Step 5: Solve for x
    x = 855,406,725,436,326,272/1,392,405,945.10
  6. Step 6: Final answer
    x = 614,337,168.30

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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.