Home / 851,646,492.60-1,277,609,888.34-261,421,913.40

Finding the Fourth Proportional to 851,646,492.60, 1,277,609,888.34 and 261,421,913.40

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Solution

The fourth proportional to 851,646,492.60, 1,277,609,888.34 and 261,421,913.40 is: 392,175,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,646,492.60 : 1,277,609,888.34 = 261,421,913.40 : x
  2. Step 2: Convert to fraction form
    851,646,492.60/1,277,609,888.34 = 261,421,913.40/x
  3. Step 3: Cross multiply
    851,646,492.60x = 1,277,609,888.34 × 261,421,913.40
  4. Step 4: Simplify right side
    851,646,492.60x = 333,995,221,588,603,136
  5. Step 5: Solve for x
    x = 333,995,221,588,603,136/851,646,492.60
  6. Step 6: Final answer
    x = 392,175,890.46

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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.