Home / 155,893,190.52-215,108,637.66-89,800,779.63

Finding the Fourth Proportional to 155,893,190.52, 215,108,637.66 and 89,800,779.63

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Solution

The fourth proportional to 155,893,190.52, 215,108,637.66 and 89,800,779.63 is: 123,911,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,893,190.52 : 215,108,637.66 = 89,800,779.63 : x
  2. Step 2: Convert to fraction form
    155,893,190.52/215,108,637.66 = 89,800,779.63/x
  3. Step 3: Cross multiply
    155,893,190.52x = 215,108,637.66 × 89,800,779.63
  4. Step 4: Simplify right side
    155,893,190.52x = 19,316,923,367,015,176
  5. Step 5: Solve for x
    x = 19,316,923,367,015,176/155,893,190.52
  6. Step 6: Final answer
    x = 123,911,270.93

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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.