Home / 118,139,758.51-177,209,637.77-31,878,026.86

Finding the Fourth Proportional to 118,139,758.51, 177,209,637.77 and 31,878,026.86

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Solution

The fourth proportional to 118,139,758.51, 177,209,637.77 and 31,878,026.86 is: 47,817,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,139,758.51 : 177,209,637.77 = 31,878,026.86 : x
  2. Step 2: Convert to fraction form
    118,139,758.51/177,209,637.77 = 31,878,026.86/x
  3. Step 3: Cross multiply
    118,139,758.51x = 177,209,637.77 × 31,878,026.86
  4. Step 4: Simplify right side
    118,139,758.51x = 5,649,093,592,682,931
  5. Step 5: Solve for x
    x = 5,649,093,592,682,931/118,139,758.51
  6. Step 6: Final answer
    x = 47,817,040.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.