Home / 767,248,811.57-1,058,801,368.47-428,153,731.65

Finding the Fourth Proportional to 767,248,811.57, 1,058,801,368.47 and 428,153,731.65

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Solution

The fourth proportional to 767,248,811.57, 1,058,801,368.47 and 428,153,731.65 is: 590,851,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,811.57 : 1,058,801,368.47 = 428,153,731.65 : x
  2. Step 2: Convert to fraction form
    767,248,811.57/1,058,801,368.47 = 428,153,731.65/x
  3. Step 3: Cross multiply
    767,248,811.57x = 1,058,801,368.47 × 428,153,731.65
  4. Step 4: Simplify right side
    767,248,811.57x = 453,329,756,986,557,120
  5. Step 5: Solve for x
    x = 453,329,756,986,557,120/767,248,811.57
  6. Step 6: Final answer
    x = 590,851,038.35

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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.