Home / 153,033,965.90-211,185,153.96-83,417,819.30

Finding the Fourth Proportional to 153,033,965.90, 211,185,153.96 and 83,417,819.30

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Solution

The fourth proportional to 153,033,965.90, 211,185,153.96 and 83,417,819.30 is: 115,115,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,033,965.90 : 211,185,153.96 = 83,417,819.30 : x
  2. Step 2: Convert to fraction form
    153,033,965.90/211,185,153.96 = 83,417,819.30/x
  3. Step 3: Cross multiply
    153,033,965.90x = 211,185,153.96 × 83,417,819.30
  4. Step 4: Simplify right side
    153,033,965.90x = 17,616,605,011,877,960
  5. Step 5: Solve for x
    x = 17,616,605,011,877,960/153,033,965.90
  6. Step 6: Final answer
    x = 115,115,653.63

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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.