Home / 872,178,965.64-1,308,113,112.68-347,504,095.30

Finding the Fourth Proportional to 872,178,965.64, 1,308,113,112.68 and 347,504,095.30

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Solution

The fourth proportional to 872,178,965.64, 1,308,113,112.68 and 347,504,095.30 is: 521,194,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,178,965.64 : 1,308,113,112.68 = 347,504,095.30 : x
  2. Step 2: Convert to fraction form
    872,178,965.64/1,308,113,112.68 = 347,504,095.30/x
  3. Step 3: Cross multiply
    872,178,965.64x = 1,308,113,112.68 × 347,504,095.30
  4. Step 4: Simplify right side
    872,178,965.64x = 454,574,663,771,930,368
  5. Step 5: Solve for x
    x = 454,574,663,771,930,368/872,178,965.64
  6. Step 6: Final answer
    x = 521,194,252.19

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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.