Home / 161,771,681.20-242,657,521.80-153,481,201.60

Finding the Fourth Proportional to 161,771,681.20, 242,657,521.80 and 153,481,201.60

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Solution

The fourth proportional to 161,771,681.20, 242,657,521.80 and 153,481,201.60 is: 230,221,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,771,681.20 : 242,657,521.80 = 153,481,201.60 : x
  2. Step 2: Convert to fraction form
    161,771,681.20/242,657,521.80 = 153,481,201.60/x
  3. Step 3: Cross multiply
    161,771,681.20x = 242,657,521.80 × 153,481,201.60
  4. Step 4: Simplify right side
    161,771,681.20x = 37,243,368,023,142,192
  5. Step 5: Solve for x
    x = 37,243,368,023,142,192/161,771,681.20
  6. Step 6: Final answer
    x = 230,221,802.40

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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.