Home / 406,903,427.28-561,509,643.96-230,703,278.40

Finding the Fourth Proportional to 406,903,427.28, 561,509,643.96 and 230,703,278.40

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Solution

The fourth proportional to 406,903,427.28, 561,509,643.96 and 230,703,278.40 is: 318,360,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,903,427.28 : 561,509,643.96 = 230,703,278.40 : x
  2. Step 2: Convert to fraction form
    406,903,427.28/561,509,643.96 = 230,703,278.40/x
  3. Step 3: Cross multiply
    406,903,427.28x = 561,509,643.96 × 230,703,278.40
  4. Step 4: Simplify right side
    406,903,427.28x = 129,542,115,714,788,768
  5. Step 5: Solve for x
    x = 129,542,115,714,788,768/406,903,427.28
  6. Step 6: Final answer
    x = 318,360,837.07

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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.