Home / 28,129,005,426.42-38,818,064,748.24-15,268,637,036.52

Finding the Fourth Proportional to 28,129,005,426.42, 38,818,064,748.24 and 15,268,637,036.52

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Solution

The fourth proportional to 28,129,005,426.42, 38,818,064,748.24 and 15,268,637,036.52 is: 21,070,739,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129,005,426.42 : 38,818,064,748.24 = 15,268,637,036.52 : x
  2. Step 2: Convert to fraction form
    28,129,005,426.42/38,818,064,748.24 = 15,268,637,036.52/x
  3. Step 3: Cross multiply
    28,129,005,426.42x = 38,818,064,748.24 × 15,268,637,036.52
  4. Step 4: Simplify right side
    28,129,005,426.42x = 592,698,941,101,008,617,472
  5. Step 5: Solve for x
    x = 592,698,941,101,008,617,472/28,129,005,426.42
  6. Step 6: Final answer
    x = 21,070,739,335.29

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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.