Home / 210,307,350.40-315,179,043.55-163,677,142.80

Finding the Fourth Proportional to 210,307,350.40, 315,179,043.55 and 163,677,142.80

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Solution

The fourth proportional to 210,307,350.40, 315,179,043.55 and 163,677,142.80 is: 245,296,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,307,350.40 : 315,179,043.55 = 163,677,142.80 : x
  2. Step 2: Convert to fraction form
    210,307,350.40/315,179,043.55 = 163,677,142.80/x
  3. Step 3: Cross multiply
    210,307,350.40x = 315,179,043.55 × 163,677,142.80
  4. Step 4: Simplify right side
    210,307,350.40x = 51,587,605,318,700,776
  5. Step 5: Solve for x
    x = 51,587,605,318,700,776/210,307,350.40
  6. Step 6: Final answer
    x = 245,296,254.37

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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.