Home / 972,887,505.28-1,342,606,480.32-555,191,474.56

Finding the Fourth Proportional to 972,887,505.28, 1,342,606,480.32 and 555,191,474.56

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Solution

The fourth proportional to 972,887,505.28, 1,342,606,480.32 and 555,191,474.56 is: 766,176,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,887,505.28 : 1,342,606,480.32 = 555,191,474.56 : x
  2. Step 2: Convert to fraction form
    972,887,505.28/1,342,606,480.32 = 555,191,474.56/x
  3. Step 3: Cross multiply
    972,887,505.28x = 1,342,606,480.32 × 555,191,474.56
  4. Step 4: Simplify right side
    972,887,505.28x = 745,403,671,562,672,256
  5. Step 5: Solve for x
    x = 745,403,671,562,672,256/972,887,505.28
  6. Step 6: Final answer
    x = 766,176,631.44

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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.