Home / 78,084,387.51-117,139,749.29-26,256,670.07

Finding the Fourth Proportional to 78,084,387.51, 117,139,749.29 and 26,256,670.07

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Solution

The fourth proportional to 78,084,387.51, 117,139,749.29 and 26,256,670.07 is: 39,389,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,084,387.51 : 117,139,749.29 = 26,256,670.07 : x
  2. Step 2: Convert to fraction form
    78,084,387.51/117,139,749.29 = 26,256,670.07/x
  3. Step 3: Cross multiply
    78,084,387.51x = 117,139,749.29 × 26,256,670.07
  4. Step 4: Simplify right side
    78,084,387.51x = 3,075,699,748,571,527
  5. Step 5: Solve for x
    x = 3,075,699,748,571,527/78,084,387.51
  6. Step 6: Final answer
    x = 39,389,432.98

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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.