Home / 640,911,564,879.90-961,163,237,273.10-210,548,754,056.22

Finding the Fourth Proportional to 640,911,564,879.90, 961,163,237,273.10 and 210,548,754,056.22

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Solution

The fourth proportional to 640,911,564,879.90, 961,163,237,273.10 and 210,548,754,056.22 is: 315,756,077,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,911,564,879.90 : 961,163,237,273.10 = 210,548,754,056.22 : x
  2. Step 2: Convert to fraction form
    640,911,564,879.90/961,163,237,273.10 = 210,548,754,056.22/x
  3. Step 3: Cross multiply
    640,911,564,879.90x = 961,163,237,273.10 × 210,548,754,056.22
  4. Step 4: Simplify right side
    640,911,564,879.90x = 202,371,722,052,494,163,968,000
  5. Step 5: Solve for x
    x = 202,371,722,052,494,163,968,000/640,911,564,879.90
  6. Step 6: Final answer
    x = 315,756,077,970.63

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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.