Home / 99,962,927.66-137,947,820.28-55,909,821.35

Finding the Fourth Proportional to 99,962,927.66, 137,947,820.28 and 55,909,821.35

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Solution

The fourth proportional to 99,962,927.66, 137,947,820.28 and 55,909,821.35 is: 77,154,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962,927.66 : 137,947,820.28 = 55,909,821.35 : x
  2. Step 2: Convert to fraction form
    99,962,927.66/137,947,820.28 = 55,909,821.35/x
  3. Step 3: Cross multiply
    99,962,927.66x = 137,947,820.28 × 55,909,821.35
  4. Step 4: Simplify right side
    99,962,927.66x = 7,712,637,986,786,968
  5. Step 5: Solve for x
    x = 7,712,637,986,786,968/99,962,927.66
  6. Step 6: Final answer
    x = 77,154,983.03

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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.