Home / 466,146,291.69-643,281,946.56-257,302,478.61

Finding the Fourth Proportional to 466,146,291.69, 643,281,946.56 and 257,302,478.61

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Solution

The fourth proportional to 466,146,291.69, 643,281,946.56 and 257,302,478.61 is: 355,077,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,146,291.69 : 643,281,946.56 = 257,302,478.61 : x
  2. Step 2: Convert to fraction form
    466,146,291.69/643,281,946.56 = 257,302,478.61/x
  3. Step 3: Cross multiply
    466,146,291.69x = 643,281,946.56 × 257,302,478.61
  4. Step 4: Simplify right side
    466,146,291.69x = 165,518,039,294,953,568
  5. Step 5: Solve for x
    x = 165,518,039,294,953,568/466,146,291.69
  6. Step 6: Final answer
    x = 355,077,455.82

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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.