Home / 55,805,389.02-77,013,105.30-30,686,193.54

Finding the Fourth Proportional to 55,805,389.02, 77,013,105.30 and 30,686,193.54

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Solution

The fourth proportional to 55,805,389.02, 77,013,105.30 and 30,686,193.54 is: 42,347,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,805,389.02 : 77,013,105.30 = 30,686,193.54 : x
  2. Step 2: Convert to fraction form
    55,805,389.02/77,013,105.30 = 30,686,193.54/x
  3. Step 3: Cross multiply
    55,805,389.02x = 77,013,105.30 × 30,686,193.54
  4. Step 4: Simplify right side
    55,805,389.02x = 2,363,239,054,352,199.50
  5. Step 5: Solve for x
    x = 2,363,239,054,352,199.50/55,805,389.02
  6. Step 6: Final answer
    x = 42,347,864.53

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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.