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Finding the Fourth Proportional to 163,721,578.99, 245,461,299.03 and 99,010,997.77

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Solution

The fourth proportional to 163,721,578.99, 245,461,299.03 and 99,010,997.77 is: 148,443,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,721,578.99 : 245,461,299.03 = 99,010,997.77 : x
  2. Step 2: Convert to fraction form
    163,721,578.99/245,461,299.03 = 99,010,997.77/x
  3. Step 3: Cross multiply
    163,721,578.99x = 245,461,299.03 × 99,010,997.77
  4. Step 4: Simplify right side
    163,721,578.99x = 24,303,368,130,880,632
  5. Step 5: Solve for x
    x = 24,303,368,130,880,632/163,721,578.99
  6. Step 6: Final answer
    x = 148,443,279.63

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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.