Home / 99,792,128.40-149,576,218.20-56,681,984.40

Finding the Fourth Proportional to 99,792,128.40, 149,576,218.20 and 56,681,984.40

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Solution

The fourth proportional to 99,792,128.40, 149,576,218.20 and 56,681,984.40 is: 84,959,375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792,128.40 : 149,576,218.20 = 56,681,984.40 : x
  2. Step 2: Convert to fraction form
    99,792,128.40/149,576,218.20 = 56,681,984.40/x
  3. Step 3: Cross multiply
    99,792,128.40x = 149,576,218.20 × 56,681,984.40
  4. Step 4: Simplify right side
    99,792,128.40x = 8,478,276,866,623,395
  5. Step 5: Solve for x
    x = 8,478,276,866,623,395/99,792,128.40
  6. Step 6: Final answer
    x = 84,959,375.08

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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.