Home / 112,072,807.20-168,109,210.80-39,371,678.40

Finding the Fourth Proportional to 112,072,807.20, 168,109,210.80 and 39,371,678.40

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Solution

The fourth proportional to 112,072,807.20, 168,109,210.80 and 39,371,678.40 is: 59,057,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,072,807.20 : 168,109,210.80 = 39,371,678.40 : x
  2. Step 2: Convert to fraction form
    112,072,807.20/168,109,210.80 = 39,371,678.40/x
  3. Step 3: Cross multiply
    112,072,807.20x = 168,109,210.80 × 39,371,678.40
  4. Step 4: Simplify right side
    112,072,807.20x = 6,618,741,783,695,407
  5. Step 5: Solve for x
    x = 6,618,741,783,695,407/112,072,807.20
  6. Step 6: Final answer
    x = 59,057,517.60

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Similar ratio
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1.5x scale

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.