Home / 99,512,547.80-149,335,176.90-45,632,125.40

Finding the Fourth Proportional to 99,512,547.80, 149,335,176.90 and 45,632,125.40

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Solution

The fourth proportional to 99,512,547.80, 149,335,176.90 and 45,632,125.40 is: 68,478,615.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512,547.80 : 149,335,176.90 = 45,632,125.40 : x
  2. Step 2: Convert to fraction form
    99,512,547.80/149,335,176.90 = 45,632,125.40/x
  3. Step 3: Cross multiply
    99,512,547.80x = 149,335,176.90 × 45,632,125.40
  4. Step 4: Simplify right side
    99,512,547.80x = 6,814,481,518,931,983
  5. Step 5: Solve for x
    x = 6,814,481,518,931,983/99,512,547.80
  6. Step 6: Final answer
    x = 68,478,615.71

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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.