Home / 1,220,835,693.60-1,831,365,514.80-402,949,792.80

Finding the Fourth Proportional to 1,220,835,693.60, 1,831,365,514.80 and 402,949,792.80

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Solution

The fourth proportional to 1,220,835,693.60, 1,831,365,514.80 and 402,949,792.80 is: 604,461,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,835,693.60 : 1,831,365,514.80 = 402,949,792.80 : x
  2. Step 2: Convert to fraction form
    1,220,835,693.60/1,831,365,514.80 = 402,949,792.80/x
  3. Step 3: Cross multiply
    1,220,835,693.60x = 1,831,365,514.80 × 402,949,792.80
  4. Step 4: Simplify right side
    1,220,835,693.60x = 737,948,354,729,725,312
  5. Step 5: Solve for x
    x = 737,948,354,729,725,312/1,220,835,693.60
  6. Step 6: Final answer
    x = 604,461,647.54

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1.5x scale

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.