Home / 689,973,356.60-1,034,960,034.90-680,903,430.20

Finding the Fourth Proportional to 689,973,356.60, 1,034,960,034.90 and 680,903,430.20

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Solution

The fourth proportional to 689,973,356.60, 1,034,960,034.90 and 680,903,430.20 is: 1,021,355,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,973,356.60 : 1,034,960,034.90 = 680,903,430.20 : x
  2. Step 2: Convert to fraction form
    689,973,356.60/1,034,960,034.90 = 680,903,430.20/x
  3. Step 3: Cross multiply
    689,973,356.60x = 1,034,960,034.90 × 680,903,430.20
  4. Step 4: Simplify right side
    689,973,356.60x = 704,707,837,883,321,728
  5. Step 5: Solve for x
    x = 704,707,837,883,321,728/689,973,356.60
  6. Step 6: Final answer
    x = 1,021,355,145.30

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1.5x scale

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.