Home / 689,559,623.30-1,034,339,434.95-431,066,720.90

Finding the Fourth Proportional to 689,559,623.30, 1,034,339,434.95 and 431,066,720.90

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Solution

The fourth proportional to 689,559,623.30, 1,034,339,434.95 and 431,066,720.90 is: 646,600,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,559,623.30 : 1,034,339,434.95 = 431,066,720.90 : x
  2. Step 2: Convert to fraction form
    689,559,623.30/1,034,339,434.95 = 431,066,720.90/x
  3. Step 3: Cross multiply
    689,559,623.30x = 1,034,339,434.95 × 431,066,720.90
  4. Step 4: Simplify right side
    689,559,623.30x = 445,869,308,521,455,360
  5. Step 5: Solve for x
    x = 445,869,308,521,455,360/689,559,623.30
  6. Step 6: Final answer
    x = 646,600,081.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.