Home / 581,692,638.43-802,983,532.51-391,064,213.52

Finding the Fourth Proportional to 581,692,638.43, 802,983,532.51 and 391,064,213.52

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Solution

The fourth proportional to 581,692,638.43, 802,983,532.51 and 391,064,213.52 is: 539,835,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,692,638.43 : 802,983,532.51 = 391,064,213.52 : x
  2. Step 2: Convert to fraction form
    581,692,638.43/802,983,532.51 = 391,064,213.52/x
  3. Step 3: Cross multiply
    581,692,638.43x = 802,983,532.51 × 391,064,213.52
  4. Step 4: Simplify right side
    581,692,638.43x = 314,018,123,611,023,296
  5. Step 5: Solve for x
    x = 314,018,123,611,023,296/581,692,638.43
  6. Step 6: Final answer
    x = 539,835,134.34

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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.