Home / 489,938,176.60-734,056,959.30-317,326,139.80

Finding the Fourth Proportional to 489,938,176.60, 734,056,959.30 and 317,326,139.80

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Solution

The fourth proportional to 489,938,176.60, 734,056,959.30 and 317,326,139.80 is: 475,438,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,938,176.60 : 734,056,959.30 = 317,326,139.80 : x
  2. Step 2: Convert to fraction form
    489,938,176.60/734,056,959.30 = 317,326,139.80/x
  3. Step 3: Cross multiply
    489,938,176.60x = 734,056,959.30 × 317,326,139.80
  4. Step 4: Simplify right side
    489,938,176.60x = 232,935,461,287,994,688
  5. Step 5: Solve for x
    x = 232,935,461,287,994,688/489,938,176.60
  6. Step 6: Final answer
    x = 475,438,478.59

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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.