Home / 479,046,042.60-718,569,063.90-430,578,623.40

Finding the Fourth Proportional to 479,046,042.60, 718,569,063.90 and 430,578,623.40

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Solution

The fourth proportional to 479,046,042.60, 718,569,063.90 and 430,578,623.40 is: 645,867,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,046,042.60 : 718,569,063.90 = 430,578,623.40 : x
  2. Step 2: Convert to fraction form
    479,046,042.60/718,569,063.90 = 430,578,623.40/x
  3. Step 3: Cross multiply
    479,046,042.60x = 718,569,063.90 × 430,578,623.40
  4. Step 4: Simplify right side
    479,046,042.60x = 309,400,478,351,888,576
  5. Step 5: Solve for x
    x = 309,400,478,351,888,576/479,046,042.60
  6. Step 6: Final answer
    x = 645,867,935.10

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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.