Home / 724,355,429.70-1,086,592,193.55-309,835,386.30

Finding the Fourth Proportional to 724,355,429.70, 1,086,592,193.55 and 309,835,386.30

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Solution

The fourth proportional to 724,355,429.70, 1,086,592,193.55 and 309,835,386.30 is: 464,778,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,355,429.70 : 1,086,592,193.55 = 309,835,386.30 : x
  2. Step 2: Convert to fraction form
    724,355,429.70/1,086,592,193.55 = 309,835,386.30/x
  3. Step 3: Cross multiply
    724,355,429.70x = 1,086,592,193.55 × 309,835,386.30
  4. Step 4: Simplify right side
    724,355,429.70x = 336,664,712,039,128,640
  5. Step 5: Solve for x
    x = 336,664,712,039,128,640/724,355,429.70
  6. Step 6: Final answer
    x = 464,778,337.04

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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.