Home / 153,230,128.80-211,462,064.02-83,619,996.46

Finding the Fourth Proportional to 153,230,128.80, 211,462,064.02 and 83,619,996.46

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Solution

The fourth proportional to 153,230,128.80, 211,462,064.02 and 83,619,996.46 is: 115,398,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,230,128.80 : 211,462,064.02 = 83,619,996.46 : x
  2. Step 2: Convert to fraction form
    153,230,128.80/211,462,064.02 = 83,619,996.46/x
  3. Step 3: Cross multiply
    153,230,128.80x = 211,462,064.02 × 83,619,996.46
  4. Step 4: Simplify right side
    153,230,128.80x = 17,682,457,044,776,692
  5. Step 5: Solve for x
    x = 17,682,457,044,776,692/153,230,128.80
  6. Step 6: Final answer
    x = 115,398,043.34

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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.