Home / 21,026,038.60-31,476,072.30-12,501,987.40

Finding the Fourth Proportional to 21,026,038.60, 31,476,072.30 and 12,501,987.40

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Solution

The fourth proportional to 21,026,038.60, 31,476,072.30 and 12,501,987.40 is: 18,715,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,038.60 : 31,476,072.30 = 12,501,987.40 : x
  2. Step 2: Convert to fraction form
    21,026,038.60/31,476,072.30 = 12,501,987.40/x
  3. Step 3: Cross multiply
    21,026,038.60x = 31,476,072.30 × 12,501,987.40
  4. Step 4: Simplify right side
    21,026,038.60x = 393,513,459,296,089.06
  5. Step 5: Solve for x
    x = 393,513,459,296,089.06/21,026,038.60
  6. Step 6: Final answer
    x = 18,715,530.15

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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.