Home / 972,102,123.42-1,341,505,018.62-526,065,507.69

Finding the Fourth Proportional to 972,102,123.42, 1,341,505,018.62 and 526,065,507.69

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Solution

The fourth proportional to 972,102,123.42, 1,341,505,018.62 and 526,065,507.69 is: 725,972,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,102,123.42 : 1,341,505,018.62 = 526,065,507.69 : x
  2. Step 2: Convert to fraction form
    972,102,123.42/1,341,505,018.62 = 526,065,507.69/x
  3. Step 3: Cross multiply
    972,102,123.42x = 1,341,505,018.62 × 526,065,507.69
  4. Step 4: Simplify right side
    972,102,123.42x = 705,719,518,689,013,120
  5. Step 5: Solve for x
    x = 705,719,518,689,013,120/972,102,123.42
  6. Step 6: Final answer
    x = 725,972,613.05

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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.