Home / 213,300,459.20-319,950,688.80-131,671,121.60

Finding the Fourth Proportional to 213,300,459.20, 319,950,688.80 and 131,671,121.60

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Solution

The fourth proportional to 213,300,459.20, 319,950,688.80 and 131,671,121.60 is: 197,506,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,300,459.20 : 319,950,688.80 = 131,671,121.60 : x
  2. Step 2: Convert to fraction form
    213,300,459.20/319,950,688.80 = 131,671,121.60/x
  3. Step 3: Cross multiply
    213,300,459.20x = 319,950,688.80 × 131,671,121.60
  4. Step 4: Simplify right side
    213,300,459.20x = 42,128,266,050,988,560
  5. Step 5: Solve for x
    x = 42,128,266,050,988,560/213,300,459.20
  6. Step 6: Final answer
    x = 197,506,682.40

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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.