Home / 524,881,262.90-787,321,894.35-320,807,918.90

Finding the Fourth Proportional to 524,881,262.90, 787,321,894.35 and 320,807,918.90

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Solution

The fourth proportional to 524,881,262.90, 787,321,894.35 and 320,807,918.90 is: 481,211,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,881,262.90 : 787,321,894.35 = 320,807,918.90 : x
  2. Step 2: Convert to fraction form
    524,881,262.90/787,321,894.35 = 320,807,918.90/x
  3. Step 3: Cross multiply
    524,881,262.90x = 787,321,894.35 × 320,807,918.90
  4. Step 4: Simplify right side
    524,881,262.90x = 252,579,098,430,829,152
  5. Step 5: Solve for x
    x = 252,579,098,430,829,152/524,881,262.90
  6. Step 6: Final answer
    x = 481,211,878.35

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Double scale
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Similar ratio
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1.5x scale

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.