Home / 314,931,971.20-472,256,239.20-120,778,859.20

Finding the Fourth Proportional to 314,931,971.20, 472,256,239.20 and 120,778,859.20

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Solution

The fourth proportional to 314,931,971.20, 472,256,239.20 and 120,778,859.20 is: 181,113,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,931,971.20 : 472,256,239.20 = 120,778,859.20 : x
  2. Step 2: Convert to fraction form
    314,931,971.20/472,256,239.20 = 120,778,859.20/x
  3. Step 3: Cross multiply
    314,931,971.20x = 472,256,239.20 × 120,778,859.20
  4. Step 4: Simplify right side
    314,931,971.20x = 57,038,569,820,658,320
  5. Step 5: Solve for x
    x = 57,038,569,820,658,320/314,931,971.20
  6. Step 6: Final answer
    x = 181,113,939.00

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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.