Home / 161,697,807.40-242,557,208.70-85,170,303.40

Finding the Fourth Proportional to 161,697,807.40, 242,557,208.70 and 85,170,303.40

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Solution

The fourth proportional to 161,697,807.40, 242,557,208.70 and 85,170,303.40 is: 127,760,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,697,807.40 : 242,557,208.70 = 85,170,303.40 : x
  2. Step 2: Convert to fraction form
    161,697,807.40/242,557,208.70 = 85,170,303.40/x
  3. Step 3: Cross multiply
    161,697,807.40x = 242,557,208.70 × 85,170,303.40
  4. Step 4: Simplify right side
    161,697,807.40x = 20,658,671,056,836,120
  5. Step 5: Solve for x
    x = 20,658,671,056,836,120/161,697,807.40
  6. Step 6: Final answer
    x = 127,760,984.45

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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.