Home / 127,202,210.82-190,426,657.32-78,523,543.89

Finding the Fourth Proportional to 127,202,210.82, 190,426,657.32 and 78,523,543.89

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Solution

The fourth proportional to 127,202,210.82, 190,426,657.32 and 78,523,543.89 is: 117,552,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,202,210.82 : 190,426,657.32 = 78,523,543.89 : x
  2. Step 2: Convert to fraction form
    127,202,210.82/190,426,657.32 = 78,523,543.89/x
  3. Step 3: Cross multiply
    127,202,210.82x = 190,426,657.32 × 78,523,543.89
  4. Step 4: Simplify right side
    127,202,210.82x = 14,952,975,983,893,010
  5. Step 5: Solve for x
    x = 14,952,975,983,893,010/127,202,210.82
  6. Step 6: Final answer
    x = 117,552,799.50

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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.