Home / 1,990,659,021.80-2,985,988,532.70-610,462,567.40

Finding the Fourth Proportional to 1,990,659,021.80, 2,985,988,532.70 and 610,462,567.40

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Solution

The fourth proportional to 1,990,659,021.80, 2,985,988,532.70 and 610,462,567.40 is: 915,693,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,659,021.80 : 2,985,988,532.70 = 610,462,567.40 : x
  2. Step 2: Convert to fraction form
    1,990,659,021.80/2,985,988,532.70 = 610,462,567.40/x
  3. Step 3: Cross multiply
    1,990,659,021.80x = 2,985,988,532.70 × 610,462,567.40
  4. Step 4: Simplify right side
    1,990,659,021.80x = 1,822,834,225,899,000,576
  5. Step 5: Solve for x
    x = 1,822,834,225,899,000,576/1,990,659,021.80
  6. Step 6: Final answer
    x = 915,693,851.10

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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.