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Finding the Fourth Proportional to 71,596,802.80, 107,395,204.20 and 40,985,801.20

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Solution

The fourth proportional to 71,596,802.80, 107,395,204.20 and 40,985,801.20 is: 61,478,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,596,802.80 : 107,395,204.20 = 40,985,801.20 : x
  2. Step 2: Convert to fraction form
    71,596,802.80/107,395,204.20 = 40,985,801.20/x
  3. Step 3: Cross multiply
    71,596,802.80x = 107,395,204.20 × 40,985,801.20
  4. Step 4: Simplify right side
    71,596,802.80x = 4,401,678,489,174,605.50
  5. Step 5: Solve for x
    x = 4,401,678,489,174,605.50/71,596,802.80
  6. Step 6: Final answer
    x = 61,478,701.80

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1.5x scale

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.