Home / 321,020,719.40-443,046,411.78-190,640,527.40

Finding the Fourth Proportional to 321,020,719.40, 443,046,411.78 and 190,640,527.40

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Solution

The fourth proportional to 321,020,719.40, 443,046,411.78 and 190,640,527.40 is: 263,106,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,020,719.40 : 443,046,411.78 = 190,640,527.40 : x
  2. Step 2: Convert to fraction form
    321,020,719.40/443,046,411.78 = 190,640,527.40/x
  3. Step 3: Cross multiply
    321,020,719.40x = 443,046,411.78 × 190,640,527.40
  4. Step 4: Simplify right side
    321,020,719.40x = 84,462,601,604,416,768
  5. Step 5: Solve for x
    x = 84,462,601,604,416,768/321,020,719.40
  6. Step 6: Final answer
    x = 263,106,386.91

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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.