Home / 155,385,667.04-214,432,188.18-85,771,029.47

Finding the Fourth Proportional to 155,385,667.04, 214,432,188.18 and 85,771,029.47

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Solution

The fourth proportional to 155,385,667.04, 214,432,188.18 and 85,771,029.47 is: 118,364,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,385,667.04 : 214,432,188.18 = 85,771,029.47 : x
  2. Step 2: Convert to fraction form
    155,385,667.04/214,432,188.18 = 85,771,029.47/x
  3. Step 3: Cross multiply
    155,385,667.04x = 214,432,188.18 × 85,771,029.47
  4. Step 4: Simplify right side
    155,385,667.04x = 18,392,069,531,703,368
  5. Step 5: Solve for x
    x = 18,392,069,531,703,368/155,385,667.04
  6. Step 6: Final answer
    x = 118,364,002.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.