Home / 14,920,638.86-20,588,655.04-9,411,945.50

Finding the Fourth Proportional to 14,920,638.86, 20,588,655.04 and 9,411,945.50

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Solution

The fourth proportional to 14,920,638.86, 20,588,655.04 and 9,411,945.50 is: 12,987,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920,638.86 : 20,588,655.04 = 9,411,945.50 : x
  2. Step 2: Convert to fraction form
    14,920,638.86/20,588,655.04 = 9,411,945.50/x
  3. Step 3: Cross multiply
    14,920,638.86x = 20,588,655.04 × 9,411,945.50
  4. Step 4: Simplify right side
    14,920,638.86x = 193,779,299,028,307.19
  5. Step 5: Solve for x
    x = 193,779,299,028,307.19/14,920,638.86
  6. Step 6: Final answer
    x = 12,987,332.57

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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.