Home / 519,312,023.68-779,113,665.14-208,637,798.84

Finding the Fourth Proportional to 519,312,023.68, 779,113,665.14 and 208,637,798.84

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Solution

The fourth proportional to 519,312,023.68, 779,113,665.14 and 208,637,798.84 is: 313,015,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,312,023.68 : 779,113,665.14 = 208,637,798.84 : x
  2. Step 2: Convert to fraction form
    519,312,023.68/779,113,665.14 = 208,637,798.84/x
  3. Step 3: Cross multiply
    519,312,023.68x = 779,113,665.14 × 208,637,798.84
  4. Step 4: Simplify right side
    519,312,023.68x = 162,552,560,140,974,432
  5. Step 5: Solve for x
    x = 162,552,560,140,974,432/519,312,023.68
  6. Step 6: Final answer
    x = 313,015,206.14

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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.