Home / 28,798,840.32-39,742,403.40-15,746,108.28

Finding the Fourth Proportional to 28,798,840.32, 39,742,403.40 and 15,746,108.28

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Solution

The fourth proportional to 28,798,840.32, 39,742,403.40 and 15,746,108.28 is: 21,729,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798,840.32 : 39,742,403.40 = 15,746,108.28 : x
  2. Step 2: Convert to fraction form
    28,798,840.32/39,742,403.40 = 15,746,108.28/x
  3. Step 3: Cross multiply
    28,798,840.32x = 39,742,403.40 × 15,746,108.28
  4. Step 4: Simplify right side
    28,798,840.32x = 625,788,187,243,840.12
  5. Step 5: Solve for x
    x = 625,788,187,243,840.12/28,798,840.32
  6. Step 6: Final answer
    x = 21,729,631.48

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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.