Home / 203,039,066,929.79-280,200,631,999.32-111,590,859,178.95

Finding the Fourth Proportional to 203,039,066,929.79, 280,200,631,999.32 and 111,590,859,178.95

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Solution

The fourth proportional to 203,039,066,929.79, 280,200,631,999.32 and 111,590,859,178.95 is: 153,999,078,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,039,066,929.79 : 280,200,631,999.32 = 111,590,859,178.95 : x
  2. Step 2: Convert to fraction form
    203,039,066,929.79/280,200,631,999.32 = 111,590,859,178.95/x
  3. Step 3: Cross multiply
    203,039,066,929.79x = 280,200,631,999.32 × 111,590,859,178.95
  4. Step 4: Simplify right side
    203,039,066,929.79x = 31,267,829,267,288,909,938,688
  5. Step 5: Solve for x
    x = 31,267,829,267,288,909,938,688/203,039,066,929.79
  6. Step 6: Final answer
    x = 153,999,078,798.47

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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.