Home / 428,034,946.54-590,724,655.23-242,428,980.46

Finding the Fourth Proportional to 428,034,946.54, 590,724,655.23 and 242,428,980.46

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Solution

The fourth proportional to 428,034,946.54, 590,724,655.23 and 242,428,980.46 is: 334,572,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,034,946.54 : 590,724,655.23 = 242,428,980.46 : x
  2. Step 2: Convert to fraction form
    428,034,946.54/590,724,655.23 = 242,428,980.46/x
  3. Step 3: Cross multiply
    428,034,946.54x = 590,724,655.23 × 242,428,980.46
  4. Step 4: Simplify right side
    428,034,946.54x = 143,208,775,899,993,920
  5. Step 5: Solve for x
    x = 143,208,775,899,993,920/428,034,946.54
  6. Step 6: Final answer
    x = 334,572,625.57

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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.