Home / 131,779,969.80-197,577,794.70-77,899,547.40

Finding the Fourth Proportional to 131,779,969.80, 197,577,794.70 and 77,899,547.40

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Solution

The fourth proportional to 131,779,969.80, 197,577,794.70 and 77,899,547.40 is: 116,794,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779,969.80 : 197,577,794.70 = 77,899,547.40 : x
  2. Step 2: Convert to fraction form
    131,779,969.80/197,577,794.70 = 77,899,547.40/x
  3. Step 3: Cross multiply
    131,779,969.80x = 197,577,794.70 × 77,899,547.40
  4. Step 4: Simplify right side
    131,779,969.80x = 15,391,220,783,420,120
  5. Step 5: Solve for x
    x = 15,391,220,783,420,120/131,779,969.80
  6. Step 6: Final answer
    x = 116,794,842.24

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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.