Home / 314,938,872.20-472,408,308.30-84,931,207.40

Finding the Fourth Proportional to 314,938,872.20, 472,408,308.30 and 84,931,207.40

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Solution

The fourth proportional to 314,938,872.20, 472,408,308.30 and 84,931,207.40 is: 127,396,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,938,872.20 : 472,408,308.30 = 84,931,207.40 : x
  2. Step 2: Convert to fraction form
    314,938,872.20/472,408,308.30 = 84,931,207.40/x
  3. Step 3: Cross multiply
    314,938,872.20x = 472,408,308.30 × 84,931,207.40
  4. Step 4: Simplify right side
    314,938,872.20x = 40,122,208,009,710,448
  5. Step 5: Solve for x
    x = 40,122,208,009,710,448/314,938,872.20
  6. Step 6: Final answer
    x = 127,396,811.10

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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.