Home / 767,248,811.56-1,058,801,368.47-428,153,731.64

Finding the Fourth Proportional to 767,248,811.56, 1,058,801,368.47 and 428,153,731.64

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Solution

The fourth proportional to 767,248,811.56, 1,058,801,368.47 and 428,153,731.64 is: 590,851,038.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,811.56 : 1,058,801,368.47 = 428,153,731.64 : x
  2. Step 2: Convert to fraction form
    767,248,811.56/1,058,801,368.47 = 428,153,731.64/x
  3. Step 3: Cross multiply
    767,248,811.56x = 1,058,801,368.47 × 428,153,731.64
  4. Step 4: Simplify right side
    767,248,811.56x = 453,329,756,975,969,152
  5. Step 5: Solve for x
    x = 453,329,756,975,969,152/767,248,811.56
  6. Step 6: Final answer
    x = 590,851,038.34

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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.