Home / 1,392,405,934.47-2,088,381,862.08-409,602,626.91

Finding the Fourth Proportional to 1,392,405,934.47, 2,088,381,862.08 and 409,602,626.91

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Solution

The fourth proportional to 1,392,405,934.47, 2,088,381,862.08 and 409,602,626.91 is: 614,337,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,405,934.47 : 2,088,381,862.08 = 409,602,626.91 : x
  2. Step 2: Convert to fraction form
    1,392,405,934.47/2,088,381,862.08 = 409,602,626.91/x
  3. Step 3: Cross multiply
    1,392,405,934.47x = 2,088,381,862.08 × 409,602,626.91
  4. Step 4: Simplify right side
    1,392,405,934.47x = 855,406,696,699,165,312
  5. Step 5: Solve for x
    x = 855,406,696,699,165,312/1,392,405,934.47
  6. Step 6: Final answer
    x = 614,337,152.35

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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.