Home / 710,134,567-980,015,967.64-396,868,771.76

Finding the Fourth Proportional to 710,134,567, 980,015,967.64 and 396,868,771.76

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Solution

The fourth proportional to 710,134,567, 980,015,967.64 and 396,868,771.76 is: 547,695,819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,567 : 980,015,967.64 = 396,868,771.76 : x
  2. Step 2: Convert to fraction form
    710,134,567/980,015,967.64 = 396,868,771.76/x
  3. Step 3: Cross multiply
    710,134,567x = 980,015,967.64 × 396,868,771.76
  4. Step 4: Simplify right side
    710,134,567x = 388,937,733,382,474,688
  5. Step 5: Solve for x
    x = 388,937,733,382,474,688/710,134,567
  6. Step 6: Final answer
    x = 547,695,819.15

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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.