Home / 310,818,298-428,917,985.16-171,586,063.12

Finding the Fourth Proportional to 310,818,298, 428,917,985.16 and 171,586,063.12

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Solution

The fourth proportional to 310,818,298, 428,917,985.16 and 171,586,063.12 is: 236,782,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,818,298 : 428,917,985.16 = 171,586,063.12 : x
  2. Step 2: Convert to fraction form
    310,818,298/428,917,985.16 = 171,586,063.12/x
  3. Step 3: Cross multiply
    310,818,298x = 428,917,985.16 × 171,586,063.12
  4. Step 4: Simplify right side
    310,818,298x = 73,596,348,474,966,992
  5. Step 5: Solve for x
    x = 73,596,348,474,966,992/310,818,298
  6. Step 6: Final answer
    x = 236,782,547.71

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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.