Home / 559,185,580.61-771,676,951.55-311,661,620.45

Finding the Fourth Proportional to 559,185,580.61, 771,676,951.55 and 311,661,620.45

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Solution

The fourth proportional to 559,185,580.61, 771,676,951.55 and 311,661,620.45 is: 430,093,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,185,580.61 : 771,676,951.55 = 311,661,620.45 : x
  2. Step 2: Convert to fraction form
    559,185,580.61/771,676,951.55 = 311,661,620.45/x
  3. Step 3: Cross multiply
    559,185,580.61x = 771,676,951.55 × 311,661,620.45
  4. Step 4: Simplify right side
    559,185,580.61x = 240,502,089,188,428,736
  5. Step 5: Solve for x
    x = 240,502,089,188,428,736/559,185,580.61
  6. Step 6: Final answer
    x = 430,093,510.14

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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.