Home / 1,417,178,139.40-2,125,767,209.10-640,849,126.60

Finding the Fourth Proportional to 1,417,178,139.40, 2,125,767,209.10 and 640,849,126.60

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Solution

The fourth proportional to 1,417,178,139.40, 2,125,767,209.10 and 640,849,126.60 is: 961,273,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,178,139.40 : 2,125,767,209.10 = 640,849,126.60 : x
  2. Step 2: Convert to fraction form
    1,417,178,139.40/2,125,767,209.10 = 640,849,126.60/x
  3. Step 3: Cross multiply
    1,417,178,139.40x = 2,125,767,209.10 × 640,849,126.60
  4. Step 4: Simplify right side
    1,417,178,139.40x = 1,362,296,059,306,654,464
  5. Step 5: Solve for x
    x = 1,362,296,059,306,654,464/1,417,178,139.40
  6. Step 6: Final answer
    x = 961,273,689.90

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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.