Home / 1,272,309,117.36-1,908,251,096.40-352,278,458.16

Finding the Fourth Proportional to 1,272,309,117.36, 1,908,251,096.40 and 352,278,458.16

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Solution

The fourth proportional to 1,272,309,117.36, 1,908,251,096.40 and 352,278,458.16 is: 528,358,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,309,117.36 : 1,908,251,096.40 = 352,278,458.16 : x
  2. Step 2: Convert to fraction form
    1,272,309,117.36/1,908,251,096.40 = 352,278,458.16/x
  3. Step 3: Cross multiply
    1,272,309,117.36x = 1,908,251,096.40 × 352,278,458.16
  4. Step 4: Simplify right side
    1,272,309,117.36x = 672,235,754,021,921,664
  5. Step 5: Solve for x
    x = 672,235,754,021,921,664/1,272,309,117.36
  6. Step 6: Final answer
    x = 528,358,827.94

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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.