Home / 155,385,703.04-214,432,237.84-85,771,065.76

Finding the Fourth Proportional to 155,385,703.04, 214,432,237.84 and 85,771,065.76

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Solution

The fourth proportional to 155,385,703.04, 214,432,237.84 and 85,771,065.76 is: 118,364,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,385,703.04 : 214,432,237.84 = 85,771,065.76 : x
  2. Step 2: Convert to fraction form
    155,385,703.04/214,432,237.84 = 85,771,065.76/x
  3. Step 3: Cross multiply
    155,385,703.04x = 214,432,237.84 × 85,771,065.76
  4. Step 4: Simplify right side
    155,385,703.04x = 18,392,081,572,838,600
  5. Step 5: Solve for x
    x = 18,392,081,572,838,600/155,385,703.04
  6. Step 6: Final answer
    x = 118,364,052.89

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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.