Home / 1,218,032,632.40-1,680,840,023.55-661,103,722.04

Finding the Fourth Proportional to 1,218,032,632.40, 1,680,840,023.55 and 661,103,722.04

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Solution

The fourth proportional to 1,218,032,632.40, 1,680,840,023.55 and 661,103,722.04 is: 912,298,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,032,632.40 : 1,680,840,023.55 = 661,103,722.04 : x
  2. Step 2: Convert to fraction form
    1,218,032,632.40/1,680,840,023.55 = 661,103,722.04/x
  3. Step 3: Cross multiply
    1,218,032,632.40x = 1,680,840,023.55 × 661,103,722.04
  4. Step 4: Simplify right side
    1,218,032,632.40x = 1,111,209,595,714,301,952
  5. Step 5: Solve for x
    x = 1,111,209,595,714,301,952/1,218,032,632.40
  6. Step 6: Final answer
    x = 912,298,707.08

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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.