Home / 639,738,011.80-959,607,017.70-536,425,881.40

Finding the Fourth Proportional to 639,738,011.80, 959,607,017.70 and 536,425,881.40

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Solution

The fourth proportional to 639,738,011.80, 959,607,017.70 and 536,425,881.40 is: 804,638,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,738,011.80 : 959,607,017.70 = 536,425,881.40 : x
  2. Step 2: Convert to fraction form
    639,738,011.80/959,607,017.70 = 536,425,881.40/x
  3. Step 3: Cross multiply
    639,738,011.80x = 959,607,017.70 × 536,425,881.40
  4. Step 4: Simplify right side
    639,738,011.80x = 514,758,040,267,347,904
  5. Step 5: Solve for x
    x = 514,758,040,267,347,904/639,738,011.80
  6. Step 6: Final answer
    x = 804,638,822.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.