Home / 139,116,772.17-191,973,649.44-77,233,128.57

Finding the Fourth Proportional to 139,116,772.17, 191,973,649.44 and 77,233,128.57

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Solution

The fourth proportional to 139,116,772.17, 191,973,649.44 and 77,233,128.57 is: 106,577,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,116,772.17 : 191,973,649.44 = 77,233,128.57 : x
  2. Step 2: Convert to fraction form
    139,116,772.17/191,973,649.44 = 77,233,128.57/x
  3. Step 3: Cross multiply
    139,116,772.17x = 191,973,649.44 × 77,233,128.57
  4. Step 4: Simplify right side
    139,116,772.17x = 14,826,725,549,251,626
  5. Step 5: Solve for x
    x = 14,826,725,549,251,626/139,116,772.17
  6. Step 6: Final answer
    x = 106,577,555.80

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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.