Home / 1,345,554,013.80-2,017,953,107.10-425,712,311.40

Finding the Fourth Proportional to 1,345,554,013.80, 2,017,953,107.10 and 425,712,311.40

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Solution

The fourth proportional to 1,345,554,013.80, 2,017,953,107.10 and 425,712,311.40 is: 638,448,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,554,013.80 : 2,017,953,107.10 = 425,712,311.40 : x
  2. Step 2: Convert to fraction form
    1,345,554,013.80/2,017,953,107.10 = 425,712,311.40/x
  3. Step 3: Cross multiply
    1,345,554,013.80x = 2,017,953,107.10 × 425,712,311.40
  4. Step 4: Simplify right side
    1,345,554,013.80x = 859,067,481,520,352,640
  5. Step 5: Solve for x
    x = 859,067,481,520,352,640/1,345,554,013.80
  6. Step 6: Final answer
    x = 638,448,901.13

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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.