Home / 389,247,257.02-537,162,638.31-210,631,146.94

Finding the Fourth Proportional to 389,247,257.02, 537,162,638.31 and 210,631,146.94

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Solution

The fourth proportional to 389,247,257.02, 537,162,638.31 and 210,631,146.94 is: 290,671,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,247,257.02 : 537,162,638.31 = 210,631,146.94 : x
  2. Step 2: Convert to fraction form
    389,247,257.02/537,162,638.31 = 210,631,146.94/x
  3. Step 3: Cross multiply
    389,247,257.02x = 537,162,638.31 × 210,631,146.94
  4. Step 4: Simplify right side
    389,247,257.02x = 113,143,182,600,551,664
  5. Step 5: Solve for x
    x = 113,143,182,600,551,664/389,247,257.02
  6. Step 6: Final answer
    x = 290,671,753.13

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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.