Home / 1,273,931,465,831.30-1,758,025,355,605-687,981,255,085.15

Finding the Fourth Proportional to 1,273,931,465,831.30, 1,758,025,355,605 and 687,981,255,085.15

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Solution

The fourth proportional to 1,273,931,465,831.30, 1,758,025,355,605 and 687,981,255,085.15 is: 949,414,095,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,931,465,831.30 : 1,758,025,355,605 = 687,981,255,085.15 : x
  2. Step 2: Convert to fraction form
    1,273,931,465,831.30/1,758,025,355,605 = 687,981,255,085.15/x
  3. Step 3: Cross multiply
    1,273,931,465,831.30x = 1,758,025,355,605 × 687,981,255,085.15
  4. Step 4: Simplify right side
    1,273,931,465,831.30x = 1,209,488,490,620,645,118,312,448
  5. Step 5: Solve for x
    x = 1,209,488,490,620,645,118,312,448/1,273,931,465,831.30
  6. Step 6: Final answer
    x = 949,414,095,703.65

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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.