Home / 1,429,272,032.20-2,143,908,048.30-509,178,387.40

Finding the Fourth Proportional to 1,429,272,032.20, 2,143,908,048.30 and 509,178,387.40

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Solution

The fourth proportional to 1,429,272,032.20, 2,143,908,048.30 and 509,178,387.40 is: 763,767,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,272,032.20 : 2,143,908,048.30 = 509,178,387.40 : x
  2. Step 2: Convert to fraction form
    1,429,272,032.20/2,143,908,048.30 = 509,178,387.40/x
  3. Step 3: Cross multiply
    1,429,272,032.20x = 2,143,908,048.30 × 509,178,387.40
  4. Step 4: Simplify right side
    1,429,272,032.20x = 1,091,631,642,767,275,264
  5. Step 5: Solve for x
    x = 1,091,631,642,767,275,264/1,429,272,032.20
  6. Step 6: Final answer
    x = 763,767,581.10

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1.5x scale

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.