Home / 100,709,901.72-151,064,852.58-66,623,275.98

Finding the Fourth Proportional to 100,709,901.72, 151,064,852.58 and 66,623,275.98

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Solution

The fourth proportional to 100,709,901.72, 151,064,852.58 and 66,623,275.98 is: 99,934,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,709,901.72 : 151,064,852.58 = 66,623,275.98 : x
  2. Step 2: Convert to fraction form
    100,709,901.72/151,064,852.58 = 66,623,275.98/x
  3. Step 3: Cross multiply
    100,709,901.72x = 151,064,852.58 × 66,623,275.98
  4. Step 4: Simplify right side
    100,709,901.72x = 10,064,435,364,315,356
  5. Step 5: Solve for x
    x = 10,064,435,364,315,356/100,709,901.72
  6. Step 6: Final answer
    x = 99,934,913.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.