Home / 879,758,392.68-1,214,045,406.02-488,618,127.72

Finding the Fourth Proportional to 879,758,392.68, 1,214,045,406.02 and 488,618,127.72

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Solution

The fourth proportional to 879,758,392.68, 1,214,045,406.02 and 488,618,127.72 is: 674,281,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,758,392.68 : 1,214,045,406.02 = 488,618,127.72 : x
  2. Step 2: Convert to fraction form
    879,758,392.68/1,214,045,406.02 = 488,618,127.72/x
  3. Step 3: Cross multiply
    879,758,392.68x = 1,214,045,406.02 × 488,618,127.72
  4. Step 4: Simplify right side
    879,758,392.68x = 593,204,593,256,559,616
  5. Step 5: Solve for x
    x = 593,204,593,256,559,616/879,758,392.68
  6. Step 6: Final answer
    x = 674,281,255.16

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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.