Home / 690,103,887.89-1,034,389,078.74-525,799,972.49

Finding the Fourth Proportional to 690,103,887.89, 1,034,389,078.74 and 525,799,972.49

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Solution

The fourth proportional to 690,103,887.89, 1,034,389,078.74 and 525,799,972.49 is: 788,115,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,103,887.89 : 1,034,389,078.74 = 525,799,972.49 : x
  2. Step 2: Convert to fraction form
    690,103,887.89/1,034,389,078.74 = 525,799,972.49/x
  3. Step 3: Cross multiply
    690,103,887.89x = 1,034,389,078.74 × 525,799,972.49
  4. Step 4: Simplify right side
    690,103,887.89x = 543,881,749,140,276,544
  5. Step 5: Solve for x
    x = 543,881,749,140,276,544/690,103,887.89
  6. Step 6: Final answer
    x = 788,115,758.64

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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.