Home / 153,912,519.93-212,399,482.59-83,348,251.74

Finding the Fourth Proportional to 153,912,519.93, 212,399,482.59 and 83,348,251.74

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Solution

The fourth proportional to 153,912,519.93, 212,399,482.59 and 83,348,251.74 is: 115,020,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,912,519.93 : 212,399,482.59 = 83,348,251.74 : x
  2. Step 2: Convert to fraction form
    153,912,519.93/212,399,482.59 = 83,348,251.74/x
  3. Step 3: Cross multiply
    153,912,519.93x = 212,399,482.59 × 83,348,251.74
  4. Step 4: Simplify right side
    153,912,519.93x = 17,703,125,544,357,066
  5. Step 5: Solve for x
    x = 17,703,125,544,357,066/153,912,519.93
  6. Step 6: Final answer
    x = 115,020,698.46

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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.