Home / 251,019,031.40-376,528,547.10-210,842,091.80

Finding the Fourth Proportional to 251,019,031.40, 376,528,547.10 and 210,842,091.80

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Solution

The fourth proportional to 251,019,031.40, 376,528,547.10 and 210,842,091.80 is: 316,263,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,019,031.40 : 376,528,547.10 = 210,842,091.80 : x
  2. Step 2: Convert to fraction form
    251,019,031.40/376,528,547.10 = 210,842,091.80/x
  3. Step 3: Cross multiply
    251,019,031.40x = 376,528,547.10 × 210,842,091.80
  4. Step 4: Simplify right side
    251,019,031.40x = 79,388,066,492,978,832
  5. Step 5: Solve for x
    x = 79,388,066,492,978,832/251,019,031.40
  6. Step 6: Final answer
    x = 316,263,137.70

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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.