Home / 13,710,978.38-18,920,879.64-7,516,038.44

Finding the Fourth Proportional to 13,710,978.38, 18,920,879.64 and 7,516,038.44

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Solution

The fourth proportional to 13,710,978.38, 18,920,879.64 and 7,516,038.44 is: 10,371,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710,978.38 : 18,920,879.64 = 7,516,038.44 : x
  2. Step 2: Convert to fraction form
    13,710,978.38/18,920,879.64 = 7,516,038.44/x
  3. Step 3: Cross multiply
    13,710,978.38x = 18,920,879.64 × 7,516,038.44
  4. Step 4: Simplify right side
    13,710,978.38x = 142,210,058,692,853.38
  5. Step 5: Solve for x
    x = 142,210,058,692,853.38/13,710,978.38
  6. Step 6: Final answer
    x = 10,371,984.75

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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.