Home / 528,696,518.58-729,620,886.06-317,037,809.30

Finding the Fourth Proportional to 528,696,518.58, 729,620,886.06 and 317,037,809.30

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Solution

The fourth proportional to 528,696,518.58, 729,620,886.06 and 317,037,809.30 is: 437,523,984.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,696,518.58 : 729,620,886.06 = 317,037,809.30 : x
  2. Step 2: Convert to fraction form
    528,696,518.58/729,620,886.06 = 317,037,809.30/x
  3. Step 3: Cross multiply
    528,696,518.58x = 729,620,886.06 × 317,037,809.30
  4. Step 4: Simplify right side
    528,696,518.58x = 231,317,407,332,339,200
  5. Step 5: Solve for x
    x = 231,317,407,332,339,200/528,696,518.58
  6. Step 6: Final answer
    x = 437,523,984.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.