Home / 290,448,011.80-435,672,017.70-108,671,570.20

Finding the Fourth Proportional to 290,448,011.80, 435,672,017.70 and 108,671,570.20

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Solution

The fourth proportional to 290,448,011.80, 435,672,017.70 and 108,671,570.20 is: 163,007,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,448,011.80 : 435,672,017.70 = 108,671,570.20 : x
  2. Step 2: Convert to fraction form
    290,448,011.80/435,672,017.70 = 108,671,570.20/x
  3. Step 3: Cross multiply
    290,448,011.80x = 435,672,017.70 × 108,671,570.20
  4. Step 4: Simplify right side
    290,448,011.80x = 47,345,162,255,661,192
  5. Step 5: Solve for x
    x = 47,345,162,255,661,192/290,448,011.80
  6. Step 6: Final answer
    x = 163,007,355.30

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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.