Home / 767,248,811.16-1,058,801,367.90-428,153,731.24

Finding the Fourth Proportional to 767,248,811.16, 1,058,801,367.90 and 428,153,731.24

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Solution

The fourth proportional to 767,248,811.16, 1,058,801,367.90 and 428,153,731.24 is: 590,851,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,811.16 : 1,058,801,367.90 = 428,153,731.24 : x
  2. Step 2: Convert to fraction form
    767,248,811.16/1,058,801,367.90 = 428,153,731.24/x
  3. Step 3: Cross multiply
    767,248,811.16x = 1,058,801,367.90 × 428,153,731.24
  4. Step 4: Simplify right side
    767,248,811.16x = 453,329,756,308,400,960
  5. Step 5: Solve for x
    x = 453,329,756,308,400,960/767,248,811.16
  6. Step 6: Final answer
    x = 590,851,037.78

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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.