Home / 153,983,533.50-212,444,963.19-87,856,526.70

Finding the Fourth Proportional to 153,983,533.50, 212,444,963.19 and 87,856,526.70

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Solution

The fourth proportional to 153,983,533.50, 212,444,963.19 and 87,856,526.70 is: 121,212,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,983,533.50 : 212,444,963.19 = 87,856,526.70 : x
  2. Step 2: Convert to fraction form
    153,983,533.50/212,444,963.19 = 87,856,526.70/x
  3. Step 3: Cross multiply
    153,983,533.50x = 212,444,963.19 × 87,856,526.70
  4. Step 4: Simplify right side
    153,983,533.50x = 18,664,676,580,782,752
  5. Step 5: Solve for x
    x = 18,664,676,580,782,752/153,983,533.50
  6. Step 6: Final answer
    x = 121,212,159.23

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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.