Home / 690,208,314.36-1,035,333,729.90-301,831,231.56

Finding the Fourth Proportional to 690,208,314.36, 1,035,333,729.90 and 301,831,231.56

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Solution

The fourth proportional to 690,208,314.36, 1,035,333,729.90 and 301,831,231.56 is: 452,756,143.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,208,314.36 : 1,035,333,729.90 = 301,831,231.56 : x
  2. Step 2: Convert to fraction form
    690,208,314.36/1,035,333,729.90 = 301,831,231.56/x
  3. Step 3: Cross multiply
    690,208,314.36x = 1,035,333,729.90 × 301,831,231.56
  4. Step 4: Simplify right side
    690,208,314.36x = 312,496,054,771,325,376
  5. Step 5: Solve for x
    x = 312,496,054,771,325,376/690,208,314.36
  6. Step 6: Final answer
    x = 452,756,143.72

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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.