Home / 1,317,879,594.28-1,818,668,851.05-723,174,030.78

Finding the Fourth Proportional to 1,317,879,594.28, 1,818,668,851.05 and 723,174,030.78

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Solution

The fourth proportional to 1,317,879,594.28, 1,818,668,851.05 and 723,174,030.78 is: 997,977,424.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,879,594.28 : 1,818,668,851.05 = 723,174,030.78 : x
  2. Step 2: Convert to fraction form
    1,317,879,594.28/1,818,668,851.05 = 723,174,030.78/x
  3. Step 3: Cross multiply
    1,317,879,594.28x = 1,818,668,851.05 × 723,174,030.78
  4. Step 4: Simplify right side
    1,317,879,594.28x = 1,315,214,083,672,406,528
  5. Step 5: Solve for x
    x = 1,315,214,083,672,406,528/1,317,879,594.28
  6. Step 6: Final answer
    x = 997,977,424.78

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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.