Home / 210,510,569.93-290,489,838.98-122,398,316.46

Finding the Fourth Proportional to 210,510,569.93, 290,489,838.98 and 122,398,316.46

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Solution

The fourth proportional to 210,510,569.93, 290,489,838.98 and 122,398,316.46 is: 168,901,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510,569.93 : 290,489,838.98 = 122,398,316.46 : x
  2. Step 2: Convert to fraction form
    210,510,569.93/290,489,838.98 = 122,398,316.46/x
  3. Step 3: Cross multiply
    210,510,569.93x = 290,489,838.98 × 122,398,316.46
  4. Step 4: Simplify right side
    210,510,569.93x = 35,555,467,239,276,492
  5. Step 5: Solve for x
    x = 35,555,467,239,276,492/210,510,569.93
  6. Step 6: Final answer
    x = 168,901,101.98

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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.