Home / 255,280,999.70-382,921,499.55-253,367,812.10

Finding the Fourth Proportional to 255,280,999.70, 382,921,499.55 and 253,367,812.10

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Solution

The fourth proportional to 255,280,999.70, 382,921,499.55 and 253,367,812.10 is: 380,051,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,280,999.70 : 382,921,499.55 = 253,367,812.10 : x
  2. Step 2: Convert to fraction form
    255,280,999.70/382,921,499.55 = 253,367,812.10/x
  3. Step 3: Cross multiply
    255,280,999.70x = 382,921,499.55 × 253,367,812.10
  4. Step 4: Simplify right side
    255,280,999.70x = 97,019,982,547,034,640
  5. Step 5: Solve for x
    x = 97,019,982,547,034,640/255,280,999.70
  6. Step 6: Final answer
    x = 380,051,718.15

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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.