Home / 450,217,500.86-621,319,569.06-249,274,374.12

Finding the Fourth Proportional to 450,217,500.86, 621,319,569.06 and 249,274,374.12

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Solution

The fourth proportional to 450,217,500.86, 621,319,569.06 and 249,274,374.12 is: 344,009,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,217,500.86 : 621,319,569.06 = 249,274,374.12 : x
  2. Step 2: Convert to fraction form
    450,217,500.86/621,319,569.06 = 249,274,374.12/x
  3. Step 3: Cross multiply
    450,217,500.86x = 621,319,569.06 × 249,274,374.12
  4. Step 4: Simplify right side
    450,217,500.86x = 154,879,046,705,939,616
  5. Step 5: Solve for x
    x = 154,879,046,705,939,616/450,217,500.86
  6. Step 6: Final answer
    x = 344,009,387.49

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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.