Home / 7,640,116.11-10,547,718-5,065,284.45

Finding the Fourth Proportional to 7,640,116.11, 10,547,718 and 5,065,284.45

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Solution

The fourth proportional to 7,640,116.11, 10,547,718 and 5,065,284.45 is: 6,992,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640,116.11 : 10,547,718 = 5,065,284.45 : x
  2. Step 2: Convert to fraction form
    7,640,116.11/10,547,718 = 5,065,284.45/x
  3. Step 3: Cross multiply
    7,640,116.11x = 10,547,718 × 5,065,284.45
  4. Step 4: Simplify right side
    7,640,116.11x = 53,427,191,968,385.10
  5. Step 5: Solve for x
    x = 53,427,191,968,385.10/7,640,116.11
  6. Step 6: Final answer
    x = 6,992,981.68

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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.