Home / 487,184,486.40-730,776,729.60-123,678,842.40

Finding the Fourth Proportional to 487,184,486.40, 730,776,729.60 and 123,678,842.40

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Solution

The fourth proportional to 487,184,486.40, 730,776,729.60 and 123,678,842.40 is: 185,518,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,184,486.40 : 730,776,729.60 = 123,678,842.40 : x
  2. Step 2: Convert to fraction form
    487,184,486.40/730,776,729.60 = 123,678,842.40/x
  3. Step 3: Cross multiply
    487,184,486.40x = 730,776,729.60 × 123,678,842.40
  4. Step 4: Simplify right side
    487,184,486.40x = 90,381,619,969,785,824
  5. Step 5: Solve for x
    x = 90,381,619,969,785,824/487,184,486.40
  6. Step 6: Final answer
    x = 185,518,263.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.