Home / 520,009,195,487.22-717,618,507,404.14-288,526,906,111.86

Finding the Fourth Proportional to 520,009,195,487.22, 717,618,507,404.14 and 288,526,906,111.86

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Solution

The fourth proportional to 520,009,195,487.22, 717,618,507,404.14 and 288,526,906,111.86 is: 398,170,358,345.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,009,195,487.22 : 717,618,507,404.14 = 288,526,906,111.86 : x
  2. Step 2: Convert to fraction form
    520,009,195,487.22/717,618,507,404.14 = 288,526,906,111.86/x
  3. Step 3: Cross multiply
    520,009,195,487.22x = 717,618,507,404.14 × 288,526,906,111.86
  4. Step 4: Simplify right side
    520,009,195,487.22x = 207,052,247,709,927,404,994,560
  5. Step 5: Solve for x
    x = 207,052,247,709,927,404,994,560/520,009,195,487.22
  6. Step 6: Final answer
    x = 398,170,358,345.17

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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.