Home / 7,721,335.09-10,651,015.38-4,815,681.40

Finding the Fourth Proportional to 7,721,335.09, 10,651,015.38 and 4,815,681.40

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Solution

The fourth proportional to 7,721,335.09, 10,651,015.38 and 4,815,681.40 is: 6,642,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721,335.09 : 10,651,015.38 = 4,815,681.40 : x
  2. Step 2: Convert to fraction form
    7,721,335.09/10,651,015.38 = 4,815,681.40/x
  3. Step 3: Cross multiply
    7,721,335.09x = 10,651,015.38 × 4,815,681.40
  4. Step 4: Simplify right side
    7,721,335.09x = 51,291,896,656,579.94
  5. Step 5: Solve for x
    x = 51,291,896,656,579.94/7,721,335.09
  6. Step 6: Final answer
    x = 6,642,879.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.