Home / 878,390,854.32-1,317,595,730.76-264,980,397.36

Finding the Fourth Proportional to 878,390,854.32, 1,317,595,730.76 and 264,980,397.36

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Solution

The fourth proportional to 878,390,854.32, 1,317,595,730.76 and 264,980,397.36 is: 397,473,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,390,854.32 : 1,317,595,730.76 = 264,980,397.36 : x
  2. Step 2: Convert to fraction form
    878,390,854.32/1,317,595,730.76 = 264,980,397.36/x
  3. Step 3: Cross multiply
    878,390,854.32x = 1,317,595,730.76 × 264,980,397.36
  4. Step 4: Simplify right side
    878,390,854.32x = 349,137,040,296,624,384
  5. Step 5: Solve for x
    x = 349,137,040,296,624,384/878,390,854.32
  6. Step 6: Final answer
    x = 397,473,446.56

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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.