Home / 315,615,581.40-435,562,953.52-176,386,339.07

Finding the Fourth Proportional to 315,615,581.40, 435,562,953.52 and 176,386,339.07

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Solution

The fourth proportional to 315,615,581.40, 435,562,953.52 and 176,386,339.07 is: 243,420,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615,581.40 : 435,562,953.52 = 176,386,339.07 : x
  2. Step 2: Convert to fraction form
    315,615,581.40/435,562,953.52 = 176,386,339.07/x
  3. Step 3: Cross multiply
    315,615,581.40x = 435,562,953.52 × 176,386,339.07
  4. Step 4: Simplify right side
    315,615,581.40x = 76,827,354,803,731,552
  5. Step 5: Solve for x
    x = 76,827,354,803,731,552/315,615,581.40
  6. Step 6: Final answer
    x = 243,420,665.30

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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.