Home / 112,334,543.80-168,501,815.70-91,927,209.40

Finding the Fourth Proportional to 112,334,543.80, 168,501,815.70 and 91,927,209.40

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Solution

The fourth proportional to 112,334,543.80, 168,501,815.70 and 91,927,209.40 is: 137,890,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,334,543.80 : 168,501,815.70 = 91,927,209.40 : x
  2. Step 2: Convert to fraction form
    112,334,543.80/168,501,815.70 = 91,927,209.40/x
  3. Step 3: Cross multiply
    112,334,543.80x = 168,501,815.70 × 91,927,209.40
  4. Step 4: Simplify right side
    112,334,543.80x = 15,489,901,696,134,108
  5. Step 5: Solve for x
    x = 15,489,901,696,134,108/112,334,543.80
  6. Step 6: Final answer
    x = 137,890,814.10

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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.