Home / 907,118,581.80-1,360,929,815.10-389,796,853.80

Finding the Fourth Proportional to 907,118,581.80, 1,360,929,815.10 and 389,796,853.80

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Solution

The fourth proportional to 907,118,581.80, 1,360,929,815.10 and 389,796,853.80 is: 584,803,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,118,581.80 : 1,360,929,815.10 = 389,796,853.80 : x
  2. Step 2: Convert to fraction form
    907,118,581.80/1,360,929,815.10 = 389,796,853.80/x
  3. Step 3: Cross multiply
    907,118,581.80x = 1,360,929,815.10 × 389,796,853.80
  4. Step 4: Simplify right side
    907,118,581.80x = 530,486,160,168,595,712
  5. Step 5: Solve for x
    x = 530,486,160,168,595,712/907,118,581.80
  6. Step 6: Final answer
    x = 584,803,542.57

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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.