Home / 1,345,554,010.80-2,017,953,102.60-425,712,308.40

Finding the Fourth Proportional to 1,345,554,010.80, 2,017,953,102.60 and 425,712,308.40

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Solution

The fourth proportional to 1,345,554,010.80, 2,017,953,102.60 and 425,712,308.40 is: 638,448,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,554,010.80 : 2,017,953,102.60 = 425,712,308.40 : x
  2. Step 2: Convert to fraction form
    1,345,554,010.80/2,017,953,102.60 = 425,712,308.40/x
  3. Step 3: Cross multiply
    1,345,554,010.80x = 2,017,953,102.60 × 425,712,308.40
  4. Step 4: Simplify right side
    1,345,554,010.80x = 859,067,473,550,787,968
  5. Step 5: Solve for x
    x = 859,067,473,550,787,968/1,345,554,010.80
  6. Step 6: Final answer
    x = 638,448,896.63

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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.