Home / 528,883,390.20-793,325,085.30-313,892,542.20

Finding the Fourth Proportional to 528,883,390.20, 793,325,085.30 and 313,892,542.20

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Solution

The fourth proportional to 528,883,390.20, 793,325,085.30 and 313,892,542.20 is: 470,838,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,883,390.20 : 793,325,085.30 = 313,892,542.20 : x
  2. Step 2: Convert to fraction form
    528,883,390.20/793,325,085.30 = 313,892,542.20/x
  3. Step 3: Cross multiply
    528,883,390.20x = 793,325,085.30 × 313,892,542.20
  4. Step 4: Simplify right side
    528,883,390.20x = 249,018,827,815,848,832
  5. Step 5: Solve for x
    x = 249,018,827,815,848,832/528,883,390.20
  6. Step 6: Final answer
    x = 470,838,813.30

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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.