Home / 131,477,804.32-181,497,485.55-78,573,180.82

Finding the Fourth Proportional to 131,477,804.32, 181,497,485.55 and 78,573,180.82

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Solution

The fourth proportional to 131,477,804.32, 181,497,485.55 and 78,573,180.82 is: 108,465,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,477,804.32 : 181,497,485.55 = 78,573,180.82 : x
  2. Step 2: Convert to fraction form
    131,477,804.32/181,497,485.55 = 78,573,180.82/x
  3. Step 3: Cross multiply
    131,477,804.32x = 181,497,485.55 × 78,573,180.82
  4. Step 4: Simplify right side
    131,477,804.32x = 14,260,834,750,495,486
  5. Step 5: Solve for x
    x = 14,260,834,750,495,486/131,477,804.32
  6. Step 6: Final answer
    x = 108,465,720.31

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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.