Home / 315,615,359.10-435,562,646.70-176,386,116.77

Finding the Fourth Proportional to 315,615,359.10, 435,562,646.70 and 176,386,116.77

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Solution

The fourth proportional to 315,615,359.10, 435,562,646.70 and 176,386,116.77 is: 243,420,358.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615,359.10 : 435,562,646.70 = 176,386,116.77 : x
  2. Step 2: Convert to fraction form
    315,615,359.10/435,562,646.70 = 176,386,116.77/x
  3. Step 3: Cross multiply
    315,615,359.10x = 435,562,646.70 × 176,386,116.77
  4. Step 4: Simplify right side
    315,615,359.10x = 76,827,203,859,298,640
  5. Step 5: Solve for x
    x = 76,827,203,859,298,640/315,615,359.10
  6. Step 6: Final answer
    x = 243,420,358.50

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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.