Home / 742,873,065.09-1,025,153,337.15-408,338,429.19

Finding the Fourth Proportional to 742,873,065.09, 1,025,153,337.15 and 408,338,429.19

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Solution

The fourth proportional to 742,873,065.09, 1,025,153,337.15 and 408,338,429.19 is: 563,500,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,873,065.09 : 1,025,153,337.15 = 408,338,429.19 : x
  2. Step 2: Convert to fraction form
    742,873,065.09/1,025,153,337.15 = 408,338,429.19/x
  3. Step 3: Cross multiply
    742,873,065.09x = 1,025,153,337.15 × 408,338,429.19
  4. Step 4: Simplify right side
    742,873,065.09x = 418,609,503,370,717,440
  5. Step 5: Solve for x
    x = 418,609,503,370,717,440/742,873,065.09
  6. Step 6: Final answer
    x = 563,500,715.05

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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.