Home / 520,156,425.26-717,920,148.58-308,580,693.93

Finding the Fourth Proportional to 520,156,425.26, 717,920,148.58 and 308,580,693.93

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Solution

The fourth proportional to 520,156,425.26, 717,920,148.58 and 308,580,693.93 is: 425,903,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,156,425.26 : 717,920,148.58 = 308,580,693.93 : x
  2. Step 2: Convert to fraction form
    520,156,425.26/717,920,148.58 = 308,580,693.93/x
  3. Step 3: Cross multiply
    520,156,425.26x = 717,920,148.58 × 308,580,693.93
  4. Step 4: Simplify right side
    520,156,425.26x = 221,536,297,634,373,664
  5. Step 5: Solve for x
    x = 221,536,297,634,373,664/520,156,425.26
  6. Step 6: Final answer
    x = 425,903,222.33

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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.