Home / 770,698,170.43-1,155,788,165.80-279,308,557.09

Finding the Fourth Proportional to 770,698,170.43, 1,155,788,165.80 and 279,308,557.09

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Solution

The fourth proportional to 770,698,170.43, 1,155,788,165.80 and 279,308,557.09 is: 418,868,938.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,698,170.43 : 1,155,788,165.80 = 279,308,557.09 : x
  2. Step 2: Convert to fraction form
    770,698,170.43/1,155,788,165.80 = 279,308,557.09/x
  3. Step 3: Cross multiply
    770,698,170.43x = 1,155,788,165.80 × 279,308,557.09
  4. Step 4: Simplify right side
    770,698,170.43x = 322,821,524,893,075,584
  5. Step 5: Solve for x
    x = 322,821,524,893,075,584/770,698,170.43
  6. Step 6: Final answer
    x = 418,868,938.94

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1.5x scale

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.