Home / 420,126,427.02-579,775,271.76-231,955,085.10

Finding the Fourth Proportional to 420,126,427.02, 579,775,271.76 and 231,955,085.10

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Solution

The fourth proportional to 420,126,427.02, 579,775,271.76 and 231,955,085.10 is: 320,098,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,126,427.02 : 579,775,271.76 = 231,955,085.10 : x
  2. Step 2: Convert to fraction form
    420,126,427.02/579,775,271.76 = 231,955,085.10/x
  3. Step 3: Cross multiply
    420,126,427.02x = 579,775,271.76 × 231,955,085.10
  4. Step 4: Simplify right side
    420,126,427.02x = 134,481,822,499,966,416
  5. Step 5: Solve for x
    x = 134,481,822,499,966,416/420,126,427.02
  6. Step 6: Final answer
    x = 320,098,460.49

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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.