Home / 215,688,000.80-323,532,001.20-70,121,280.80

Finding the Fourth Proportional to 215,688,000.80, 323,532,001.20 and 70,121,280.80

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Solution

The fourth proportional to 215,688,000.80, 323,532,001.20 and 70,121,280.80 is: 105,181,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,688,000.80 : 323,532,001.20 = 70,121,280.80 : x
  2. Step 2: Convert to fraction form
    215,688,000.80/323,532,001.20 = 70,121,280.80/x
  3. Step 3: Cross multiply
    215,688,000.80x = 323,532,001.20 × 70,121,280.80
  4. Step 4: Simplify right side
    215,688,000.80x = 22,686,478,303,931,136
  5. Step 5: Solve for x
    x = 22,686,478,303,931,136/215,688,000.80
  6. Step 6: Final answer
    x = 105,181,921.20

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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.