Home / 1,292,420,303,880.10-1,938,630,455,953.60-431,894,473,355.88

Finding the Fourth Proportional to 1,292,420,303,880.10, 1,938,630,455,953.60 and 431,894,473,355.88

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Solution

The fourth proportional to 1,292,420,303,880.10, 1,938,630,455,953.60 and 431,894,473,355.88 is: 647,841,710,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,420,303,880.10 : 1,938,630,455,953.60 = 431,894,473,355.88 : x
  2. Step 2: Convert to fraction form
    1,292,420,303,880.10/1,938,630,455,953.60 = 431,894,473,355.88/x
  3. Step 3: Cross multiply
    1,292,420,303,880.10x = 1,938,630,455,953.60 × 431,894,473,355.88
  4. Step 4: Simplify right side
    1,292,420,303,880.10x = 837,283,779,805,749,610,283,008
  5. Step 5: Solve for x
    x = 837,283,779,805,749,610,283,008/1,292,420,303,880.10
  6. Step 6: Final answer
    x = 647,841,710,078.42

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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.