Home / 1,123,298,606.81-1,685,177,717.45-386,272,793.40

Finding the Fourth Proportional to 1,123,298,606.81, 1,685,177,717.45 and 386,272,793.40

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Solution

The fourth proportional to 1,123,298,606.81, 1,685,177,717.45 and 386,272,793.40 is: 579,488,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,298,606.81 : 1,685,177,717.45 = 386,272,793.40 : x
  2. Step 2: Convert to fraction form
    1,123,298,606.81/1,685,177,717.45 = 386,272,793.40/x
  3. Step 3: Cross multiply
    1,123,298,606.81x = 1,685,177,717.45 × 386,272,793.40
  4. Step 4: Simplify right side
    1,123,298,606.81x = 650,938,304,286,596,608
  5. Step 5: Solve for x
    x = 650,938,304,286,596,608/1,123,298,606.81
  6. Step 6: Final answer
    x = 579,488,214.74

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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.