Home / 421,650,523,565.59-642,355,406,399.25

Finding the Third Proportional to 421,650,523,565.59 and 642,355,406,399.25

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Solution

The third proportional to 421,650,523,565.59 and 642,355,406,399.25 is: 978,584,028,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,650,523,565.59 : 642,355,406,399.25 = 642,355,406,399.25 : x
  2. Step 2: Convert to fraction form
    421,650,523,565.59/642,355,406,399.25 = 642,355,406,399.25/x
  3. Step 3: Cross multiply
    421,650,523,565.59x = 642,355,406,399.25 × 642,355,406,399.25
  4. Step 4: Simplify right side
    421,650,523,565.59x = 412,620,468,130,345,637,642,240
  5. Step 5: Solve for x
    x = 412,620,468,130,345,637,642,240/421,650,523,565.59
  6. Step 6: Final answer
    x = 978,584,028,880.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.