Home / 402,459,270.23-555,019,084.63-261,179,427.45

Finding the Fourth Proportional to 402,459,270.23, 555,019,084.63 and 261,179,427.45

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Solution

The fourth proportional to 402,459,270.23, 555,019,084.63 and 261,179,427.45 is: 360,184,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,459,270.23 : 555,019,084.63 = 261,179,427.45 : x
  2. Step 2: Convert to fraction form
    402,459,270.23/555,019,084.63 = 261,179,427.45/x
  3. Step 3: Cross multiply
    402,459,270.23x = 555,019,084.63 × 261,179,427.45
  4. Step 4: Simplify right side
    402,459,270.23x = 144,959,566,748,431,712
  5. Step 5: Solve for x
    x = 144,959,566,748,431,712/402,459,270.23
  6. Step 6: Final answer
    x = 360,184,439.69

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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.