Home / 77,443,140.90-106,867,477.74-42,629,031.48

Finding the Fourth Proportional to 77,443,140.90, 106,867,477.74 and 42,629,031.48

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Solution

The fourth proportional to 77,443,140.90, 106,867,477.74 and 42,629,031.48 is: 58,825,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,443,140.90 : 106,867,477.74 = 42,629,031.48 : x
  2. Step 2: Convert to fraction form
    77,443,140.90/106,867,477.74 = 42,629,031.48/x
  3. Step 3: Cross multiply
    77,443,140.90x = 106,867,477.74 × 42,629,031.48
  4. Step 4: Simplify right side
    77,443,140.90x = 4,555,657,072,766,659
  5. Step 5: Solve for x
    x = 4,555,657,072,766,659/77,443,140.90
  6. Step 6: Final answer
    x = 58,825,830.41

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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.