Home / 78,563,959.51-108,421,643.06-43,756,665.43

Finding the Fourth Proportional to 78,563,959.51, 108,421,643.06 and 43,756,665.43

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Solution

The fourth proportional to 78,563,959.51, 108,421,643.06 and 43,756,665.43 is: 60,386,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,563,959.51 : 108,421,643.06 = 43,756,665.43 : x
  2. Step 2: Convert to fraction form
    78,563,959.51/108,421,643.06 = 43,756,665.43/x
  3. Step 3: Cross multiply
    78,563,959.51x = 108,421,643.06 × 43,756,665.43
  4. Step 4: Simplify right side
    78,563,959.51x = 4,744,169,560,747,301
  5. Step 5: Solve for x
    x = 4,744,169,560,747,301/78,563,959.51
  6. Step 6: Final answer
    x = 60,386,080.21

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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.