Home / 189,721,988,429.02-284,572,507,521.08-138,722,547,247.86

Finding the Fourth Proportional to 189,721,988,429.02, 284,572,507,521.08 and 138,722,547,247.86

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Solution

The fourth proportional to 189,721,988,429.02, 284,572,507,521.08 and 138,722,547,247.86 is: 208,076,161,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,721,988,429.02 : 284,572,507,521.08 = 138,722,547,247.86 : x
  2. Step 2: Convert to fraction form
    189,721,988,429.02/284,572,507,521.08 = 138,722,547,247.86/x
  3. Step 3: Cross multiply
    189,721,988,429.02x = 284,572,507,521.08 × 138,722,547,247.86
  4. Step 4: Simplify right side
    189,721,988,429.02x = 39,476,623,120,035,009,789,952
  5. Step 5: Solve for x
    x = 39,476,623,120,035,009,789,952/189,721,988,429.02
  6. Step 6: Final answer
    x = 208,076,161,582.11

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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.