Home / 127,478,584.80-191,501,312.40-122,660,186.40

Finding the Fourth Proportional to 127,478,584.80, 191,501,312.40 and 122,660,186.40

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Solution

The fourth proportional to 127,478,584.80, 191,501,312.40 and 122,660,186.40 is: 184,263,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,478,584.80 : 191,501,312.40 = 122,660,186.40 : x
  2. Step 2: Convert to fraction form
    127,478,584.80/191,501,312.40 = 122,660,186.40/x
  3. Step 3: Cross multiply
    127,478,584.80x = 191,501,312.40 × 122,660,186.40
  4. Step 4: Simplify right side
    127,478,584.80x = 23,489,586,674,828,632
  5. Step 5: Solve for x
    x = 23,489,586,674,828,632/127,478,584.80
  6. Step 6: Final answer
    x = 184,263,001.60

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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.