Home / 151,478,766,962.64-209,043,143,999.28-82,896,139,172.52

Finding the Fourth Proportional to 151,478,766,962.64, 209,043,143,999.28 and 82,896,139,172.52

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Solution

The fourth proportional to 151,478,766,962.64, 209,043,143,999.28 and 82,896,139,172.52 is: 114,398,010,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,478,766,962.64 : 209,043,143,999.28 = 82,896,139,172.52 : x
  2. Step 2: Convert to fraction form
    151,478,766,962.64/209,043,143,999.28 = 82,896,139,172.52/x
  3. Step 3: Cross multiply
    151,478,766,962.64x = 209,043,143,999.28 × 82,896,139,172.52
  4. Step 4: Simplify right side
    151,478,766,962.64x = 17,328,869,558,025,455,665,152
  5. Step 5: Solve for x
    x = 17,328,869,558,025,455,665,152/151,478,766,962.64
  6. Step 6: Final answer
    x = 114,398,010,397.72

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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.