Home / 685,549,612.17-1,028,000,248.34-265,567,683.87

Finding the Fourth Proportional to 685,549,612.17, 1,028,000,248.34 and 265,567,683.87

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Solution

The fourth proportional to 685,549,612.17, 1,028,000,248.34 and 265,567,683.87 is: 398,225,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,549,612.17 : 1,028,000,248.34 = 265,567,683.87 : x
  2. Step 2: Convert to fraction form
    685,549,612.17/1,028,000,248.34 = 265,567,683.87/x
  3. Step 3: Cross multiply
    685,549,612.17x = 1,028,000,248.34 × 265,567,683.87
  4. Step 4: Simplify right side
    685,549,612.17x = 273,003,644,968,110,784
  5. Step 5: Solve for x
    x = 273,003,644,968,110,784/685,549,612.17
  6. Step 6: Final answer
    x = 398,225,949.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.