Home / 315,615,581.90-435,562,954.21-176,386,339.56

Finding the Fourth Proportional to 315,615,581.90, 435,562,954.21 and 176,386,339.56

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Solution

The fourth proportional to 315,615,581.90, 435,562,954.21 and 176,386,339.56 is: 243,420,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615,581.90 : 435,562,954.21 = 176,386,339.56 : x
  2. Step 2: Convert to fraction form
    315,615,581.90/435,562,954.21 = 176,386,339.56/x
  3. Step 3: Cross multiply
    315,615,581.90x = 435,562,954.21 × 176,386,339.56
  4. Step 4: Simplify right side
    315,615,581.90x = 76,827,355,141,041,792
  5. Step 5: Solve for x
    x = 76,827,355,141,041,792/315,615,581.90
  6. Step 6: Final answer
    x = 243,420,665.98

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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.