Home / 1,678,542,328.90-2,316,395,615.35-915,603,025.05

Finding the Fourth Proportional to 1,678,542,328.90, 2,316,395,615.35 and 915,603,025.05

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Solution

The fourth proportional to 1,678,542,328.90, 2,316,395,615.35 and 915,603,025.05 is: 1,263,536,102.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,542,328.90 : 2,316,395,615.35 = 915,603,025.05 : x
  2. Step 2: Convert to fraction form
    1,678,542,328.90/2,316,395,615.35 = 915,603,025.05/x
  3. Step 3: Cross multiply
    1,678,542,328.90x = 2,316,395,615.35 × 915,603,025.05
  4. Step 4: Simplify right side
    1,678,542,328.90x = 2,120,898,832,627,015,936
  5. Step 5: Solve for x
    x = 2,120,898,832,627,015,936/1,678,542,328.90
  6. Step 6: Final answer
    x = 1,263,536,102.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.