Home / 522,936,530.40-784,404,795.60-318,863,186.40

Finding the Fourth Proportional to 522,936,530.40, 784,404,795.60 and 318,863,186.40

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Solution

The fourth proportional to 522,936,530.40, 784,404,795.60 and 318,863,186.40 is: 478,294,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,936,530.40 : 784,404,795.60 = 318,863,186.40 : x
  2. Step 2: Convert to fraction form
    522,936,530.40/784,404,795.60 = 318,863,186.40/x
  3. Step 3: Cross multiply
    522,936,530.40x = 784,404,795.60 × 318,863,186.40
  4. Step 4: Simplify right side
    522,936,530.40x = 250,117,812,552,456,704
  5. Step 5: Solve for x
    x = 250,117,812,552,456,704/522,936,530.40
  6. Step 6: Final answer
    x = 478,294,779.60

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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.