Home / 1,042,922,018,930.20-1,564,561,253,332.40-429,966,506,358.78

Finding the Fourth Proportional to 1,042,922,018,930.20, 1,564,561,253,332.40 and 429,966,506,358.78

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Solution

The fourth proportional to 1,042,922,018,930.20, 1,564,561,253,332.40 and 429,966,506,358.78 is: 645,023,236,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,922,018,930.20 : 1,564,561,253,332.40 = 429,966,506,358.78 : x
  2. Step 2: Convert to fraction form
    1,042,922,018,930.20/1,564,561,253,332.40 = 429,966,506,358.78/x
  3. Step 3: Cross multiply
    1,042,922,018,930.20x = 1,564,561,253,332.40 × 429,966,506,358.78
  4. Step 4: Simplify right side
    1,042,922,018,930.20x = 672,708,936,079,646,237,130,752
  5. Step 5: Solve for x
    x = 672,708,936,079,646,237,130,752/1,042,922,018,930.20
  6. Step 6: Final answer
    x = 645,023,236,511.67

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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.