Home / 931,176,127.80-1,285,054,078.22-507,812,888.39

Finding the Fourth Proportional to 931,176,127.80, 1,285,054,078.22 and 507,812,888.39

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Solution

The fourth proportional to 931,176,127.80, 1,285,054,078.22 and 507,812,888.39 is: 700,798,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,176,127.80 : 1,285,054,078.22 = 507,812,888.39 : x
  2. Step 2: Convert to fraction form
    931,176,127.80/1,285,054,078.22 = 507,812,888.39/x
  3. Step 3: Cross multiply
    931,176,127.80x = 1,285,054,078.22 × 507,812,888.39
  4. Step 4: Simplify right side
    931,176,127.80x = 652,567,023,189,282,816
  5. Step 5: Solve for x
    x = 652,567,023,189,282,816/931,176,127.80
  6. Step 6: Final answer
    x = 700,798,703.60

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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.