Home / 157,547,426.27-217,415,749.11-86,983,172.98

Finding the Fourth Proportional to 157,547,426.27, 217,415,749.11 and 86,983,172.98

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Solution

The fourth proportional to 157,547,426.27, 217,415,749.11 and 86,983,172.98 is: 120,036,944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,547,426.27 : 217,415,749.11 = 86,983,172.98 : x
  2. Step 2: Convert to fraction form
    157,547,426.27/217,415,749.11 = 86,983,172.98/x
  3. Step 3: Cross multiply
    157,547,426.27x = 217,415,749.11 × 86,983,172.98
  4. Step 4: Simplify right side
    157,547,426.27x = 18,911,511,712,324,332
  5. Step 5: Solve for x
    x = 18,911,511,712,324,332/157,547,426.27
  6. Step 6: Final answer
    x = 120,036,944.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.