Home / 1,986,899,999.60-2,980,349,999.40-1,954,651,372.40

Finding the Fourth Proportional to 1,986,899,999.60, 2,980,349,999.40 and 1,954,651,372.40

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Solution

The fourth proportional to 1,986,899,999.60, 2,980,349,999.40 and 1,954,651,372.40 is: 2,931,977,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,899,999.60 : 2,980,349,999.40 = 1,954,651,372.40 : x
  2. Step 2: Convert to fraction form
    1,986,899,999.60/2,980,349,999.40 = 1,954,651,372.40/x
  3. Step 3: Cross multiply
    1,986,899,999.60x = 2,980,349,999.40 × 1,954,651,372.40
  4. Step 4: Simplify right side
    1,986,899,999.60x = 5,825,545,216,559,549,440
  5. Step 5: Solve for x
    x = 5,825,545,216,559,549,440/1,986,899,999.60
  6. Step 6: Final answer
    x = 2,931,977,058.60

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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.