Home / 28,403,999.10-42,557,009.85-13,226,802.30

Finding the Fourth Proportional to 28,403,999.10, 42,557,009.85 and 13,226,802.30

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Solution

The fourth proportional to 28,403,999.10, 42,557,009.85 and 13,226,802.30 is: 19,817,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403,999.10 : 42,557,009.85 = 13,226,802.30 : x
  2. Step 2: Convert to fraction form
    28,403,999.10/42,557,009.85 = 13,226,802.30/x
  3. Step 3: Cross multiply
    28,403,999.10x = 42,557,009.85 × 13,226,802.30
  4. Step 4: Simplify right side
    28,403,999.10x = 562,893,155,765,102.69
  5. Step 5: Solve for x
    x = 562,893,155,765,102.69/28,403,999.10
  6. Step 6: Final answer
    x = 19,817,390.99

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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.