Home / 858,833,123.10-1,288,249,684.65-725,807,535.90

Finding the Fourth Proportional to 858,833,123.10, 1,288,249,684.65 and 725,807,535.90

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Solution

The fourth proportional to 858,833,123.10, 1,288,249,684.65 and 725,807,535.90 is: 1,088,711,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,833,123.10 : 1,288,249,684.65 = 725,807,535.90 : x
  2. Step 2: Convert to fraction form
    858,833,123.10/1,288,249,684.65 = 725,807,535.90/x
  3. Step 3: Cross multiply
    858,833,123.10x = 1,288,249,684.65 × 725,807,535.90
  4. Step 4: Simplify right side
    858,833,123.10x = 935,021,329,239,768,576
  5. Step 5: Solve for x
    x = 935,021,329,239,768,576/858,833,123.10
  6. Step 6: Final answer
    x = 1,088,711,303.85

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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.