Home / 840,636,880.64-1,259,861,438.10-342,066,244.58

Finding the Fourth Proportional to 840,636,880.64, 1,259,861,438.10 and 342,066,244.58

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Solution

The fourth proportional to 840,636,880.64, 1,259,861,438.10 and 342,066,244.58 is: 512,654,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,636,880.64 : 1,259,861,438.10 = 342,066,244.58 : x
  2. Step 2: Convert to fraction form
    840,636,880.64/1,259,861,438.10 = 342,066,244.58/x
  3. Step 3: Cross multiply
    840,636,880.64x = 1,259,861,438.10 × 342,066,244.58
  4. Step 4: Simplify right side
    840,636,880.64x = 430,956,070,822,025,088
  5. Step 5: Solve for x
    x = 430,956,070,822,025,088/840,636,880.64
  6. Step 6: Final answer
    x = 512,654,251.49

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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.