Home / 121,127,964.30-181,691,946.45-70,109,628.30

Finding the Fourth Proportional to 121,127,964.30, 181,691,946.45 and 70,109,628.30

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Solution

The fourth proportional to 121,127,964.30, 181,691,946.45 and 70,109,628.30 is: 105,164,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,964.30 : 181,691,946.45 = 70,109,628.30 : x
  2. Step 2: Convert to fraction form
    121,127,964.30/181,691,946.45 = 70,109,628.30/x
  3. Step 3: Cross multiply
    121,127,964.30x = 181,691,946.45 × 70,109,628.30
  4. Step 4: Simplify right side
    121,127,964.30x = 12,738,354,830,713,004
  5. Step 5: Solve for x
    x = 12,738,354,830,713,004/121,127,964.30
  6. Step 6: Final answer
    x = 105,164,442.45

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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.