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Finding the Fourth Proportional to 489,307,302.80, 733,960,954.20 and 470,495,603.60

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Solution

The fourth proportional to 489,307,302.80, 733,960,954.20 and 470,495,603.60 is: 705,743,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,307,302.80 : 733,960,954.20 = 470,495,603.60 : x
  2. Step 2: Convert to fraction form
    489,307,302.80/733,960,954.20 = 470,495,603.60/x
  3. Step 3: Cross multiply
    489,307,302.80x = 733,960,954.20 × 470,495,603.60
  4. Step 4: Simplify right side
    489,307,302.80x = 345,325,402,165,161,024
  5. Step 5: Solve for x
    x = 345,325,402,165,161,024/489,307,302.80
  6. Step 6: Final answer
    x = 705,743,405.40

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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.