Home / 687,492,145.84-948,762,077.84-386,130,564.72

Finding the Fourth Proportional to 687,492,145.84, 948,762,077.84 and 386,130,564.72

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Solution

The fourth proportional to 687,492,145.84, 948,762,077.84 and 386,130,564.72 is: 532,873,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,492,145.84 : 948,762,077.84 = 386,130,564.72 : x
  2. Step 2: Convert to fraction form
    687,492,145.84/948,762,077.84 = 386,130,564.72/x
  3. Step 3: Cross multiply
    687,492,145.84x = 948,762,077.84 × 386,130,564.72
  4. Step 4: Simplify right side
    687,492,145.84x = 366,346,036,901,279,808
  5. Step 5: Solve for x
    x = 366,346,036,901,279,808/687,492,145.84
  6. Step 6: Final answer
    x = 532,873,050.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.