Home / 28,483,411.80-42,725,117.70-20,869,152.60

Finding the Fourth Proportional to 28,483,411.80, 42,725,117.70 and 20,869,152.60

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Solution

The fourth proportional to 28,483,411.80, 42,725,117.70 and 20,869,152.60 is: 31,303,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483,411.80 : 42,725,117.70 = 20,869,152.60 : x
  2. Step 2: Convert to fraction form
    28,483,411.80/42,725,117.70 = 20,869,152.60/x
  3. Step 3: Cross multiply
    28,483,411.80x = 42,725,117.70 × 20,869,152.60
  4. Step 4: Simplify right side
    28,483,411.80x = 891,637,001,134,261.12
  5. Step 5: Solve for x
    x = 891,637,001,134,261.12/28,483,411.80
  6. Step 6: Final answer
    x = 31,303,728.90

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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.