Home / 153,310,352.40-211,571,488.08-83,698,667.28

Finding the Fourth Proportional to 153,310,352.40, 211,571,488.08 and 83,698,667.28

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Solution

The fourth proportional to 153,310,352.40, 211,571,488.08 and 83,698,667.28 is: 115,505,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,310,352.40 : 211,571,488.08 = 83,698,667.28 : x
  2. Step 2: Convert to fraction form
    153,310,352.40/211,571,488.08 = 83,698,667.28/x
  3. Step 3: Cross multiply
    153,310,352.40x = 211,571,488.08 × 83,698,667.28
  4. Step 4: Simplify right side
    153,310,352.40x = 17,708,251,586,742,408
  5. Step 5: Solve for x
    x = 17,708,251,586,742,408/153,310,352.40
  6. Step 6: Final answer
    x = 115,505,908.83

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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.