Home / 1,302,299,128.04-1,797,172,384.30-715,626,055.40

Finding the Fourth Proportional to 1,302,299,128.04, 1,797,172,384.30 and 715,626,055.40

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Solution

The fourth proportional to 1,302,299,128.04, 1,797,172,384.30 and 715,626,055.40 is: 987,563,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,299,128.04 : 1,797,172,384.30 = 715,626,055.40 : x
  2. Step 2: Convert to fraction form
    1,302,299,128.04/1,797,172,384.30 = 715,626,055.40/x
  3. Step 3: Cross multiply
    1,302,299,128.04x = 1,797,172,384.30 × 715,626,055.40
  4. Step 4: Simplify right side
    1,302,299,128.04x = 1,286,103,384,250,421,760
  5. Step 5: Solve for x
    x = 1,286,103,384,250,421,760/1,302,299,128.04
  6. Step 6: Final answer
    x = 987,563,729.84

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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.