Home / 320,726,772,384.51-442,640,889,736.08-190,516,141,420.15

Finding the Fourth Proportional to 320,726,772,384.51, 442,640,889,736.08 and 190,516,141,420.15

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Solution

The fourth proportional to 320,726,772,384.51, 442,640,889,736.08 and 190,516,141,420.15 is: 262,934,814,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,726,772,384.51 : 442,640,889,736.08 = 190,516,141,420.15 : x
  2. Step 2: Convert to fraction form
    320,726,772,384.51/442,640,889,736.08 = 190,516,141,420.15/x
  3. Step 3: Cross multiply
    320,726,772,384.51x = 442,640,889,736.08 × 190,516,141,420.15
  4. Step 4: Simplify right side
    320,726,772,384.51x = 84,330,234,347,300,033,921,024
  5. Step 5: Solve for x
    x = 84,330,234,347,300,033,921,024/320,726,772,384.51
  6. Step 6: Final answer
    x = 262,934,814,329.12

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1.5x scale

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.