Home / 77,378,222.34-106,781,943.06-42,570,165.51

Finding the Fourth Proportional to 77,378,222.34, 106,781,943.06 and 42,570,165.51

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Solution

The fourth proportional to 77,378,222.34, 106,781,943.06 and 42,570,165.51 is: 58,746,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,378,222.34 : 106,781,943.06 = 42,570,165.51 : x
  2. Step 2: Convert to fraction form
    77,378,222.34/106,781,943.06 = 42,570,165.51/x
  3. Step 3: Cross multiply
    77,378,222.34x = 106,781,943.06 × 42,570,165.51
  4. Step 4: Simplify right side
    77,378,222.34x = 4,545,724,989,543,596
  5. Step 5: Solve for x
    x = 4,545,724,989,543,596/77,378,222.34
  6. Step 6: Final answer
    x = 58,746,826.33

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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.