Home / 189,896,999.40-284,686,066.80-99,020,588.40

Finding the Fourth Proportional to 189,896,999.40, 284,686,066.80 and 99,020,588.40

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Solution

The fourth proportional to 189,896,999.40, 284,686,066.80 and 99,020,588.40 is: 148,447,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,896,999.40 : 284,686,066.80 = 99,020,588.40 : x
  2. Step 2: Convert to fraction form
    189,896,999.40/284,686,066.80 = 99,020,588.40/x
  3. Step 3: Cross multiply
    189,896,999.40x = 284,686,066.80 × 99,020,588.40
  4. Step 4: Simplify right side
    189,896,999.40x = 28,189,781,843,817,708
  5. Step 5: Solve for x
    x = 28,189,781,843,817,708/189,896,999.40
  6. Step 6: Final answer
    x = 148,447,747.64

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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.