Home / 1,159,763,948.40-1,600,474,512.60-638,243,180.40

Finding the Fourth Proportional to 1,159,763,948.40, 1,600,474,512.60 and 638,243,180.40

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Solution

The fourth proportional to 1,159,763,948.40, 1,600,474,512.60 and 638,243,180.40 is: 880,775,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,763,948.40 : 1,600,474,512.60 = 638,243,180.40 : x
  2. Step 2: Convert to fraction form
    1,159,763,948.40/1,600,474,512.60 = 638,243,180.40/x
  3. Step 3: Cross multiply
    1,159,763,948.40x = 1,600,474,512.60 × 638,243,180.40
  4. Step 4: Simplify right side
    1,159,763,948.40x = 1,021,491,943,070,963,712
  5. Step 5: Solve for x
    x = 1,021,491,943,070,963,712/1,159,763,948.40
  6. Step 6: Final answer
    x = 880,775,734.13

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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.