Home / 510,275,887.93-765,710,899.14-215,152,501.21

Finding the Fourth Proportional to 510,275,887.93, 765,710,899.14 and 215,152,501.21

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Solution

The fourth proportional to 510,275,887.93, 765,710,899.14 and 215,152,501.21 is: 322,854,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,275,887.93 : 765,710,899.14 = 215,152,501.21 : x
  2. Step 2: Convert to fraction form
    510,275,887.93/765,710,899.14 = 215,152,501.21/x
  3. Step 3: Cross multiply
    510,275,887.93x = 765,710,899.14 × 215,152,501.21
  4. Step 4: Simplify right side
    510,275,887.93x = 164,744,615,153,729,056
  5. Step 5: Solve for x
    x = 164,744,615,153,729,056/510,275,887.93
  6. Step 6: Final answer
    x = 322,854,007.12

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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.