Home / 631,638,008.10-947,457,012.15-222,558,200.10

Finding the Fourth Proportional to 631,638,008.10, 947,457,012.15 and 222,558,200.10

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Solution

The fourth proportional to 631,638,008.10, 947,457,012.15 and 222,558,200.10 is: 333,837,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,638,008.10 : 947,457,012.15 = 222,558,200.10 : x
  2. Step 2: Convert to fraction form
    631,638,008.10/947,457,012.15 = 222,558,200.10/x
  3. Step 3: Cross multiply
    631,638,008.10x = 947,457,012.15 × 222,558,200.10
  4. Step 4: Simplify right side
    631,638,008.10x = 210,864,327,296,227,808
  5. Step 5: Solve for x
    x = 210,864,327,296,227,808/631,638,008.10
  6. Step 6: Final answer
    x = 333,837,300.15

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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.