Home / 885,075,788.13-1,221,408,488.77-488,602,035.62

Finding the Fourth Proportional to 885,075,788.13, 1,221,408,488.77 and 488,602,035.62

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Solution

The fourth proportional to 885,075,788.13, 1,221,408,488.77 and 488,602,035.62 is: 674,272,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,075,788.13 : 1,221,408,488.77 = 488,602,035.62 : x
  2. Step 2: Convert to fraction form
    885,075,788.13/1,221,408,488.77 = 488,602,035.62/x
  3. Step 3: Cross multiply
    885,075,788.13x = 1,221,408,488.77 × 488,602,035.62
  4. Step 4: Simplify right side
    885,075,788.13x = 596,782,673,938,633,984
  5. Step 5: Solve for x
    x = 596,782,673,938,633,984/885,075,788.13
  6. Step 6: Final answer
    x = 674,272,962.77

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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.