Home / 428,034,946.29-590,724,654.89-242,428,980.21

Finding the Fourth Proportional to 428,034,946.29, 590,724,654.89 and 242,428,980.21

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Solution

The fourth proportional to 428,034,946.29, 590,724,654.89 and 242,428,980.21 is: 334,572,625.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,034,946.29 : 590,724,654.89 = 242,428,980.21 : x
  2. Step 2: Convert to fraction form
    428,034,946.29/590,724,654.89 = 242,428,980.21/x
  3. Step 3: Cross multiply
    428,034,946.29x = 590,724,654.89 × 242,428,980.21
  4. Step 4: Simplify right side
    428,034,946.29x = 143,208,775,668,674,752
  5. Step 5: Solve for x
    x = 143,208,775,668,674,752/428,034,946.29
  6. Step 6: Final answer
    x = 334,572,625.23

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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.