Home / 315,615,356.10-435,562,642.56-176,386,113.77

Finding the Fourth Proportional to 315,615,356.10, 435,562,642.56 and 176,386,113.77

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Solution

The fourth proportional to 315,615,356.10, 435,562,642.56 and 176,386,113.77 is: 243,420,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615,356.10 : 435,562,642.56 = 176,386,113.77 : x
  2. Step 2: Convert to fraction form
    315,615,356.10/435,562,642.56 = 176,386,113.77/x
  3. Step 3: Cross multiply
    315,615,356.10x = 435,562,642.56 × 176,386,113.77
  4. Step 4: Simplify right side
    315,615,356.10x = 76,827,201,822,372,192
  5. Step 5: Solve for x
    x = 76,827,201,822,372,192/315,615,356.10
  6. Step 6: Final answer
    x = 243,420,354.36

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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.