Home / 1,272,994,738.75-1,909,492,638.68-572,668,870.51

Finding the Fourth Proportional to 1,272,994,738.75, 1,909,492,638.68 and 572,668,870.51

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Solution

The fourth proportional to 1,272,994,738.75, 1,909,492,638.68 and 572,668,870.51 is: 859,003,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,994,738.75 : 1,909,492,638.68 = 572,668,870.51 : x
  2. Step 2: Convert to fraction form
    1,272,994,738.75/1,909,492,638.68 = 572,668,870.51/x
  3. Step 3: Cross multiply
    1,272,994,738.75x = 1,909,492,638.68 × 572,668,870.51
  4. Step 4: Simplify right side
    1,272,994,738.75x = 1,093,506,992,640,035,200
  5. Step 5: Solve for x
    x = 1,093,506,992,640,035,200/1,272,994,738.75
  6. Step 6: Final answer
    x = 859,003,544.44

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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.