Home / 485,196,036.72-728,121,526.17-190,054,547.76

Finding the Fourth Proportional to 485,196,036.72, 728,121,526.17 and 190,054,547.76

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Solution

The fourth proportional to 485,196,036.72, 728,121,526.17 and 190,054,547.76 is: 285,210,094.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,196,036.72 : 728,121,526.17 = 190,054,547.76 : x
  2. Step 2: Convert to fraction form
    485,196,036.72/728,121,526.17 = 190,054,547.76/x
  3. Step 3: Cross multiply
    485,196,036.72x = 728,121,526.17 × 190,054,547.76
  4. Step 4: Simplify right side
    485,196,036.72x = 138,382,807,370,560,336
  5. Step 5: Solve for x
    x = 138,382,807,370,560,336/485,196,036.72
  6. Step 6: Final answer
    x = 285,210,094.27

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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.