Home / 315,615,377.16-435,562,671.60-176,386,134.78

Finding the Fourth Proportional to 315,615,377.16, 435,562,671.60 and 176,386,134.78

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Solution

The fourth proportional to 315,615,377.16, 435,562,671.60 and 176,386,134.78 is: 243,420,383.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,615,377.16 : 435,562,671.60 = 176,386,134.78 : x
  2. Step 2: Convert to fraction form
    315,615,377.16/435,562,671.60 = 176,386,134.78/x
  3. Step 3: Cross multiply
    315,615,377.16x = 435,562,671.60 × 176,386,134.78
  4. Step 4: Simplify right side
    315,615,377.16x = 76,827,216,097,974,480
  5. Step 5: Solve for x
    x = 76,827,216,097,974,480/315,615,377.16
  6. Step 6: Final answer
    x = 243,420,383.35

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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.