Home / 116,486,790.80-174,730,186.20-78,166,662.80

Finding the Fourth Proportional to 116,486,790.80, 174,730,186.20 and 78,166,662.80

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Solution

The fourth proportional to 116,486,790.80, 174,730,186.20 and 78,166,662.80 is: 117,249,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,486,790.80 : 174,730,186.20 = 78,166,662.80 : x
  2. Step 2: Convert to fraction form
    116,486,790.80/174,730,186.20 = 78,166,662.80/x
  3. Step 3: Cross multiply
    116,486,790.80x = 174,730,186.20 × 78,166,662.80
  4. Step 4: Simplify right side
    116,486,790.80x = 13,658,075,545,676,612
  5. Step 5: Solve for x
    x = 13,658,075,545,676,612/116,486,790.80
  6. Step 6: Final answer
    x = 117,249,994.20

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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.