Home / 389,684,894.47-537,760,873.18-211,064,338.98

Finding the Fourth Proportional to 389,684,894.47, 537,760,873.18 and 211,064,338.98

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Solution

The fourth proportional to 389,684,894.47, 537,760,873.18 and 211,064,338.98 is: 291,266,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,684,894.47 : 537,760,873.18 = 211,064,338.98 : x
  2. Step 2: Convert to fraction form
    389,684,894.47/537,760,873.18 = 211,064,338.98/x
  3. Step 3: Cross multiply
    389,684,894.47x = 537,760,873.18 × 211,064,338.98
  4. Step 4: Simplify right side
    389,684,894.47x = 113,502,143,224,500,048
  5. Step 5: Solve for x
    x = 113,502,143,224,500,048/389,684,894.47
  6. Step 6: Final answer
    x = 291,266,468.97

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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.