Home / 153,842,543.80-230,763,815.70-138,725,999.80

Finding the Fourth Proportional to 153,842,543.80, 230,763,815.70 and 138,725,999.80

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Solution

The fourth proportional to 153,842,543.80, 230,763,815.70 and 138,725,999.80 is: 208,088,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,842,543.80 : 230,763,815.70 = 138,725,999.80 : x
  2. Step 2: Convert to fraction form
    153,842,543.80/230,763,815.70 = 138,725,999.80/x
  3. Step 3: Cross multiply
    153,842,543.80x = 230,763,815.70 × 138,725,999.80
  4. Step 4: Simplify right side
    153,842,543.80x = 32,012,941,050,645,436
  5. Step 5: Solve for x
    x = 32,012,941,050,645,436/153,842,543.80
  6. Step 6: Final answer
    x = 208,088,999.70

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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.