Home / 116,486,720.80-174,730,081.20-78,166,592.80

Finding the Fourth Proportional to 116,486,720.80, 174,730,081.20 and 78,166,592.80

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Solution

The fourth proportional to 116,486,720.80, 174,730,081.20 and 78,166,592.80 is: 117,249,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,486,720.80 : 174,730,081.20 = 78,166,592.80 : x
  2. Step 2: Convert to fraction form
    116,486,720.80/174,730,081.20 = 78,166,592.80/x
  3. Step 3: Cross multiply
    116,486,720.80x = 174,730,081.20 × 78,166,592.80
  4. Step 4: Simplify right side
    116,486,720.80x = 13,658,055,107,071,334
  5. Step 5: Solve for x
    x = 13,658,055,107,071,334/116,486,720.80
  6. Step 6: Final answer
    x = 117,249,889.20

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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.