Home / 434,683,813.80-652,025,720.70-391,685,644.20

Finding the Fourth Proportional to 434,683,813.80, 652,025,720.70 and 391,685,644.20

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Solution

The fourth proportional to 434,683,813.80, 652,025,720.70 and 391,685,644.20 is: 587,528,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,683,813.80 : 652,025,720.70 = 391,685,644.20 : x
  2. Step 2: Convert to fraction form
    434,683,813.80/652,025,720.70 = 391,685,644.20/x
  3. Step 3: Cross multiply
    434,683,813.80x = 652,025,720.70 × 391,685,644.20
  4. Step 4: Simplify right side
    434,683,813.80x = 255,389,114,447,348,800
  5. Step 5: Solve for x
    x = 255,389,114,447,348,800/434,683,813.80
  6. Step 6: Final answer
    x = 587,528,466.30

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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.