Home / 1,931,962,636.80-2,898,406,308.60-621,987,143.88

Finding the Fourth Proportional to 1,931,962,636.80, 2,898,406,308.60 and 621,987,143.88

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Solution

The fourth proportional to 1,931,962,636.80, 2,898,406,308.60 and 621,987,143.88 is: 933,129,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,962,636.80 : 2,898,406,308.60 = 621,987,143.88 : x
  2. Step 2: Convert to fraction form
    1,931,962,636.80/2,898,406,308.60 = 621,987,143.88/x
  3. Step 3: Cross multiply
    1,931,962,636.80x = 2,898,406,308.60 × 621,987,143.88
  4. Step 4: Simplify right side
    1,931,962,636.80x = 1,802,771,461,689,887,744
  5. Step 5: Solve for x
    x = 1,802,771,461,689,887,744/1,931,962,636.80
  6. Step 6: Final answer
    x = 933,129,568.53

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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.