Home / 388,446,220.95-536,049,528.98-212,230,432.59

Finding the Fourth Proportional to 388,446,220.95, 536,049,528.98 and 212,230,432.59

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Solution

The fourth proportional to 388,446,220.95, 536,049,528.98 and 212,230,432.59 is: 292,874,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,446,220.95 : 536,049,528.98 = 212,230,432.59 : x
  2. Step 2: Convert to fraction form
    388,446,220.95/536,049,528.98 = 212,230,432.59/x
  3. Step 3: Cross multiply
    388,446,220.95x = 536,049,528.98 × 212,230,432.59
  4. Step 4: Simplify right side
    388,446,220.95x = 113,766,023,425,091,152
  5. Step 5: Solve for x
    x = 113,766,023,425,091,152/388,446,220.95
  6. Step 6: Final answer
    x = 292,874,579.00

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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.