Home / 112,189,148.95-168,337,017.78-77,698,628.05

Finding the Fourth Proportional to 112,189,148.95, 168,337,017.78 and 77,698,628.05

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Solution

The fourth proportional to 112,189,148.95, 168,337,017.78 and 77,698,628.05 is: 116,584,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,189,148.95 : 168,337,017.78 = 77,698,628.05 : x
  2. Step 2: Convert to fraction form
    112,189,148.95/168,337,017.78 = 77,698,628.05/x
  3. Step 3: Cross multiply
    112,189,148.95x = 168,337,017.78 × 77,698,628.05
  4. Step 4: Simplify right side
    112,189,148.95x = 13,079,555,331,534,456
  5. Step 5: Solve for x
    x = 13,079,555,331,534,456/112,189,148.95
  6. Step 6: Final answer
    x = 116,584,852.05

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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.