Home / 521,551,031.22-782,447,554.29-171,784,547.40

Finding the Fourth Proportional to 521,551,031.22, 782,447,554.29 and 171,784,547.40

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Solution

The fourth proportional to 521,551,031.22, 782,447,554.29 and 171,784,547.40 is: 257,716,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551,031.22 : 782,447,554.29 = 171,784,547.40 : x
  2. Step 2: Convert to fraction form
    521,551,031.22/782,447,554.29 = 171,784,547.40/x
  3. Step 3: Cross multiply
    521,551,031.22x = 782,447,554.29 × 171,784,547.40
  4. Step 4: Simplify right side
    521,551,031.22x = 134,412,398,977,944,576
  5. Step 5: Solve for x
    x = 134,412,398,977,944,576/521,551,031.22
  6. Step 6: Final answer
    x = 257,716,677.63

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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.