Home / 239,640,088.02-330,678,117.45-139,148,881.74

Finding the Fourth Proportional to 239,640,088.02, 330,678,117.45 and 139,148,881.74

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Solution

The fourth proportional to 239,640,088.02, 330,678,117.45 and 139,148,881.74 is: 192,010,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,640,088.02 : 330,678,117.45 = 139,148,881.74 : x
  2. Step 2: Convert to fraction form
    239,640,088.02/330,678,117.45 = 139,148,881.74/x
  3. Step 3: Cross multiply
    239,640,088.02x = 330,678,117.45 × 139,148,881.74
  4. Step 4: Simplify right side
    239,640,088.02x = 46,013,490,259,055,880
  5. Step 5: Solve for x
    x = 46,013,490,259,055,880/239,640,088.02
  6. Step 6: Final answer
    x = 192,010,821.89

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1.5x scale

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.