Home / 387,284,823.45-534,437,497.91-211,069,042.58

Finding the Fourth Proportional to 387,284,823.45, 534,437,497.91 and 211,069,042.58

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Solution

The fourth proportional to 387,284,823.45, 534,437,497.91 and 211,069,042.58 is: 291,266,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,284,823.45 : 534,437,497.91 = 211,069,042.58 : x
  2. Step 2: Convert to fraction form
    387,284,823.45/534,437,497.91 = 211,069,042.58/x
  3. Step 3: Cross multiply
    387,284,823.45x = 534,437,497.91 × 211,069,042.58
  4. Step 4: Simplify right side
    387,284,823.45x = 112,803,211,004,578,224
  5. Step 5: Solve for x
    x = 112,803,211,004,578,224/387,284,823.45
  6. Step 6: Final answer
    x = 291,266,799.46

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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.