Home / 134,858,009.04-186,104,045.25-72,978,347.58

Finding the Fourth Proportional to 134,858,009.04, 186,104,045.25 and 72,978,347.58

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Solution

The fourth proportional to 134,858,009.04, 186,104,045.25 and 72,978,347.58 is: 100,710,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,858,009.04 : 186,104,045.25 = 72,978,347.58 : x
  2. Step 2: Convert to fraction form
    134,858,009.04/186,104,045.25 = 72,978,347.58/x
  3. Step 3: Cross multiply
    134,858,009.04x = 186,104,045.25 × 72,978,347.58
  4. Step 4: Simplify right side
    134,858,009.04x = 13,581,565,700,298,548
  5. Step 5: Solve for x
    x = 13,581,565,700,298,548/134,858,009.04
  6. Step 6: Final answer
    x = 100,710,115.75

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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.