Home / 1,429,272,035.20-2,143,908,052.80-509,178,390.40

Finding the Fourth Proportional to 1,429,272,035.20, 2,143,908,052.80 and 509,178,390.40

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Solution

The fourth proportional to 1,429,272,035.20, 2,143,908,052.80 and 509,178,390.40 is: 763,767,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,272,035.20 : 2,143,908,052.80 = 509,178,390.40 : x
  2. Step 2: Convert to fraction form
    1,429,272,035.20/2,143,908,052.80 = 509,178,390.40/x
  3. Step 3: Cross multiply
    1,429,272,035.20x = 2,143,908,052.80 × 509,178,390.40
  4. Step 4: Simplify right side
    1,429,272,035.20x = 1,091,631,651,490,302,080
  5. Step 5: Solve for x
    x = 1,091,631,651,490,302,080/1,429,272,035.20
  6. Step 6: Final answer
    x = 763,767,585.60

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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.