Home / 389,391,773,030.67-537,363,801,900.85-215,779,812,461.37

Finding the Fourth Proportional to 389,391,773,030.67, 537,363,801,900.85 and 215,779,812,461.37

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Solution

The fourth proportional to 389,391,773,030.67, 537,363,801,900.85 and 215,779,812,461.37 is: 297,777,889,592.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,391,773,030.67 : 537,363,801,900.85 = 215,779,812,461.37 : x
  2. Step 2: Convert to fraction form
    389,391,773,030.67/537,363,801,900.85 = 215,779,812,461.37/x
  3. Step 3: Cross multiply
    389,391,773,030.67x = 537,363,801,900.85 × 215,779,812,461.37
  4. Step 4: Simplify right side
    389,391,773,030.67x = 115,952,260,397,694,185,373,696
  5. Step 5: Solve for x
    x = 115,952,260,397,694,185,373,696/389,391,773,030.67
  6. Step 6: Final answer
    x = 297,777,889,592.35

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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.