Home / 1,565,708,597.79-2,160,686,406.80-921,992,616.51

Finding the Fourth Proportional to 1,565,708,597.79, 2,160,686,406.80 and 921,992,616.51

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Solution

The fourth proportional to 1,565,708,597.79, 2,160,686,406.80 and 921,992,616.51 is: 1,272,354,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,708,597.79 : 2,160,686,406.80 = 921,992,616.51 : x
  2. Step 2: Convert to fraction form
    1,565,708,597.79/2,160,686,406.80 = 921,992,616.51/x
  3. Step 3: Cross multiply
    1,565,708,597.79x = 2,160,686,406.80 × 921,992,616.51
  4. Step 4: Simplify right side
    1,565,708,597.79x = 1,992,136,913,663,122,432
  5. Step 5: Solve for x
    x = 1,992,136,913,663,122,432/1,565,708,597.79
  6. Step 6: Final answer
    x = 1,272,354,840.79

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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.