Home / 77,378,210.82-106,781,927.40-42,570,154.53

Finding the Fourth Proportional to 77,378,210.82, 106,781,927.40 and 42,570,154.53

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Solution

The fourth proportional to 77,378,210.82, 106,781,927.40 and 42,570,154.53 is: 58,746,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,378,210.82 : 106,781,927.40 = 42,570,154.53 : x
  2. Step 2: Convert to fraction form
    77,378,210.82/106,781,927.40 = 42,570,154.53/x
  3. Step 3: Cross multiply
    77,378,210.82x = 106,781,927.40 × 42,570,154.53
  4. Step 4: Simplify right side
    77,378,210.82x = 4,545,723,150,429,242
  5. Step 5: Solve for x
    x = 4,545,723,150,429,242/77,378,210.82
  6. Step 6: Final answer
    x = 58,746,811.31

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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.