Home / 732,885,738.32-1,011,389,089.92-398,359,047.72

Finding the Fourth Proportional to 732,885,738.32, 1,011,389,089.92 and 398,359,047.72

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Solution

The fourth proportional to 732,885,738.32, 1,011,389,089.92 and 398,359,047.72 is: 549,739,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,885,738.32 : 1,011,389,089.92 = 398,359,047.72 : x
  2. Step 2: Convert to fraction form
    732,885,738.32/1,011,389,089.92 = 398,359,047.72/x
  3. Step 3: Cross multiply
    732,885,738.32x = 1,011,389,089.92 × 398,359,047.72
  4. Step 4: Simplify right side
    732,885,738.32x = 402,895,994,734,928,640
  5. Step 5: Solve for x
    x = 402,895,994,734,928,640/732,885,738.32
  6. Step 6: Final answer
    x = 549,739,166.24

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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.