Home / 910,105,768.95-1,255,588,593.75-528,562,851.42

Finding the Fourth Proportional to 910,105,768.95, 1,255,588,593.75 and 528,562,851.42

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Solution

The fourth proportional to 910,105,768.95, 1,255,588,593.75 and 528,562,851.42 is: 729,209,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,105,768.95 : 1,255,588,593.75 = 528,562,851.42 : x
  2. Step 2: Convert to fraction form
    910,105,768.95/1,255,588,593.75 = 528,562,851.42/x
  3. Step 3: Cross multiply
    910,105,768.95x = 1,255,588,593.75 × 528,562,851.42
  4. Step 4: Simplify right side
    910,105,768.95x = 663,657,487,322,928,000
  5. Step 5: Solve for x
    x = 663,657,487,322,928,000/910,105,768.95
  6. Step 6: Final answer
    x = 729,209,186.41

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1.5x scale

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.