Home / 39,912,000.40-59,868,000.60-12,985,656.40

Finding the Fourth Proportional to 39,912,000.40, 59,868,000.60 and 12,985,656.40

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Solution

The fourth proportional to 39,912,000.40, 59,868,000.60 and 12,985,656.40 is: 19,478,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912,000.40 : 59,868,000.60 = 12,985,656.40 : x
  2. Step 2: Convert to fraction form
    39,912,000.40/59,868,000.60 = 12,985,656.40/x
  3. Step 3: Cross multiply
    39,912,000.40x = 59,868,000.60 × 12,985,656.40
  4. Step 4: Simplify right side
    39,912,000.40x = 777,425,285,146,593.88
  5. Step 5: Solve for x
    x = 777,425,285,146,593.88/39,912,000.40
  6. Step 6: Final answer
    x = 19,478,484.60

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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.