Home / 74,749,013.70-103,138,232.47-42,953,040.15

Finding the Fourth Proportional to 74,749,013.70, 103,138,232.47 and 42,953,040.15

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Solution

The fourth proportional to 74,749,013.70, 103,138,232.47 and 42,953,040.15 is: 59,266,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,749,013.70 : 103,138,232.47 = 42,953,040.15 : x
  2. Step 2: Convert to fraction form
    74,749,013.70/103,138,232.47 = 42,953,040.15/x
  3. Step 3: Cross multiply
    74,749,013.70x = 103,138,232.47 × 42,953,040.15
  4. Step 4: Simplify right side
    74,749,013.70x = 4,430,100,640,283,943.50
  5. Step 5: Solve for x
    x = 4,430,100,640,283,943.50/74,749,013.70
  6. Step 6: Final answer
    x = 59,266,342.40

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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.