Home / 819,252,153.21-1,130,349,990.55-466,820,631.57

Finding the Fourth Proportional to 819,252,153.21, 1,130,349,990.55 and 466,820,631.57

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Solution

The fourth proportional to 819,252,153.21, 1,130,349,990.55 and 466,820,631.57 is: 644,088,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,252,153.21 : 1,130,349,990.55 = 466,820,631.57 : x
  2. Step 2: Convert to fraction form
    819,252,153.21/1,130,349,990.55 = 466,820,631.57/x
  3. Step 3: Cross multiply
    819,252,153.21x = 1,130,349,990.55 × 466,820,631.57
  4. Step 4: Simplify right side
    819,252,153.21x = 527,670,696,483,694,528
  5. Step 5: Solve for x
    x = 527,670,696,483,694,528/819,252,153.21
  6. Step 6: Final answer
    x = 644,088,263.20

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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.