Home / 403,309,167.40-605,038,400.70-130,688,828.20

Finding the Fourth Proportional to 403,309,167.40, 605,038,400.70 and 130,688,828.20

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Solution

The fourth proportional to 403,309,167.40, 605,038,400.70 and 130,688,828.20 is: 196,057,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,309,167.40 : 605,038,400.70 = 130,688,828.20 : x
  2. Step 2: Convert to fraction form
    403,309,167.40/605,038,400.70 = 130,688,828.20/x
  3. Step 3: Cross multiply
    403,309,167.40x = 605,038,400.70 × 130,688,828.20
  4. Step 4: Simplify right side
    403,309,167.40x = 79,071,759,603,485,072
  5. Step 5: Solve for x
    x = 79,071,759,603,485,072/403,309,167.40
  6. Step 6: Final answer
    x = 196,057,431.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.