Home / 512,592,762.84-707,341,289.25-300,908,188.63

Finding the Fourth Proportional to 512,592,762.84, 707,341,289.25 and 300,908,188.63

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Solution

The fourth proportional to 512,592,762.84, 707,341,289.25 and 300,908,188.63 is: 415,231,742.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,592,762.84 : 707,341,289.25 = 300,908,188.63 : x
  2. Step 2: Convert to fraction form
    512,592,762.84/707,341,289.25 = 300,908,188.63/x
  3. Step 3: Cross multiply
    512,592,762.84x = 707,341,289.25 × 300,908,188.63
  4. Step 4: Simplify right side
    512,592,762.84x = 212,844,786,091,426,400
  5. Step 5: Solve for x
    x = 212,844,786,091,426,400/512,592,762.84
  6. Step 6: Final answer
    x = 415,231,742.47

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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.