Home / 1,272,994,737.75-1,909,492,637.18-572,668,869.51

Finding the Fourth Proportional to 1,272,994,737.75, 1,909,492,637.18 and 572,668,869.51

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Solution

The fourth proportional to 1,272,994,737.75, 1,909,492,637.18 and 572,668,869.51 is: 859,003,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,994,737.75 : 1,909,492,637.18 = 572,668,869.51 : x
  2. Step 2: Convert to fraction form
    1,272,994,737.75/1,909,492,637.18 = 572,668,869.51/x
  3. Step 3: Cross multiply
    1,272,994,737.75x = 1,909,492,637.18 × 572,668,869.51
  4. Step 4: Simplify right side
    1,272,994,737.75x = 1,093,506,989,868,675,840
  5. Step 5: Solve for x
    x = 1,093,506,989,868,675,840/1,272,994,737.75
  6. Step 6: Final answer
    x = 859,003,542.94

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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.