Home / 310,779,442.71-428,874,135.62-171,548,986.59

Finding the Fourth Proportional to 310,779,442.71, 428,874,135.62 and 171,548,986.59

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Solution

The fourth proportional to 310,779,442.71, 428,874,135.62 and 171,548,986.59 is: 236,736,776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,779,442.71 : 428,874,135.62 = 171,548,986.59 : x
  2. Step 2: Convert to fraction form
    310,779,442.71/428,874,135.62 = 171,548,986.59/x
  3. Step 3: Cross multiply
    310,779,442.71x = 428,874,135.62 × 171,548,986.59
  4. Step 4: Simplify right side
    310,779,442.71x = 73,572,923,339,415,472
  5. Step 5: Solve for x
    x = 73,572,923,339,415,472/310,779,442.71
  6. Step 6: Final answer
    x = 236,736,776.08

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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.