Home / 153,230,118.80-211,462,050.21-83,619,986.45

Finding the Fourth Proportional to 153,230,118.80, 211,462,050.21 and 83,619,986.45

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Solution

The fourth proportional to 153,230,118.80, 211,462,050.21 and 83,619,986.45 is: 115,398,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,230,118.80 : 211,462,050.21 = 83,619,986.45 : x
  2. Step 2: Convert to fraction form
    153,230,118.80/211,462,050.21 = 83,619,986.45/x
  3. Step 3: Cross multiply
    153,230,118.80x = 211,462,050.21 × 83,619,986.45
  4. Step 4: Simplify right side
    153,230,118.80x = 17,682,453,773,249,420
  5. Step 5: Solve for x
    x = 17,682,453,773,249,420/153,230,118.80
  6. Step 6: Final answer
    x = 115,398,029.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.