Home / 428,034,938.04-590,724,643.50-242,428,971.96

Finding the Fourth Proportional to 428,034,938.04, 590,724,643.50 and 242,428,971.96

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Solution

The fourth proportional to 428,034,938.04, 590,724,643.50 and 242,428,971.96 is: 334,572,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,034,938.04 : 590,724,643.50 = 242,428,971.96 : x
  2. Step 2: Convert to fraction form
    428,034,938.04/590,724,643.50 = 242,428,971.96/x
  3. Step 3: Cross multiply
    428,034,938.04x = 590,724,643.50 × 242,428,971.96
  4. Step 4: Simplify right side
    428,034,938.04x = 143,208,768,035,142,496
  5. Step 5: Solve for x
    x = 143,208,768,035,142,496/428,034,938.04
  6. Step 6: Final answer
    x = 334,572,613.84

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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.