Home / 896,985,813.40-1,345,478,720.10-655,121,109.40

Finding the Fourth Proportional to 896,985,813.40, 1,345,478,720.10 and 655,121,109.40

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Solution

The fourth proportional to 896,985,813.40, 1,345,478,720.10 and 655,121,109.40 is: 982,681,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,985,813.40 : 1,345,478,720.10 = 655,121,109.40 : x
  2. Step 2: Convert to fraction form
    896,985,813.40/1,345,478,720.10 = 655,121,109.40/x
  3. Step 3: Cross multiply
    896,985,813.40x = 1,345,478,720.10 × 655,121,109.40
  4. Step 4: Simplify right side
    896,985,813.40x = 881,451,511,786,003,968
  5. Step 5: Solve for x
    x = 881,451,511,786,003,968/896,985,813.40
  6. Step 6: Final answer
    x = 982,681,664.10

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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.