Home / 77,075,722.52-106,354,721.14-42,259,251.12

Finding the Fourth Proportional to 77,075,722.52, 106,354,721.14 and 42,259,251.12

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Solution

The fourth proportional to 77,075,722.52, 106,354,721.14 and 42,259,251.12 is: 58,312,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,075,722.52 : 106,354,721.14 = 42,259,251.12 : x
  2. Step 2: Convert to fraction form
    77,075,722.52/106,354,721.14 = 42,259,251.12/x
  3. Step 3: Cross multiply
    77,075,722.52x = 106,354,721.14 × 42,259,251.12
  4. Step 4: Simplify right side
    77,075,722.52x = 4,494,470,868,452,832.50
  5. Step 5: Solve for x
    x = 4,494,470,868,452,832.50/77,075,722.52
  6. Step 6: Final answer
    x = 58,312,406.57

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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.