Home / 1,239,296,439.80-1,710,259,755-674,812,267.40

Finding the Fourth Proportional to 1,239,296,439.80, 1,710,259,755 and 674,812,267.40

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Solution

The fourth proportional to 1,239,296,439.80, 1,710,259,755 and 674,812,267.40 is: 931,257,628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,296,439.80 : 1,710,259,755 = 674,812,267.40 : x
  2. Step 2: Convert to fraction form
    1,239,296,439.80/1,710,259,755 = 674,812,267.40/x
  3. Step 3: Cross multiply
    1,239,296,439.80x = 1,710,259,755 × 674,812,267.40
  4. Step 4: Simplify right side
    1,239,296,439.80x = 1,154,104,263,114,518,528
  5. Step 5: Solve for x
    x = 1,154,104,263,114,518,528/1,239,296,439.80
  6. Step 6: Final answer
    x = 931,257,628.16

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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.