Home / 143,779,411.60-215,669,117.40-89,359,853.20

Finding the Fourth Proportional to 143,779,411.60, 215,669,117.40 and 89,359,853.20

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Solution

The fourth proportional to 143,779,411.60, 215,669,117.40 and 89,359,853.20 is: 134,039,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,779,411.60 : 215,669,117.40 = 89,359,853.20 : x
  2. Step 2: Convert to fraction form
    143,779,411.60/215,669,117.40 = 89,359,853.20/x
  3. Step 3: Cross multiply
    143,779,411.60x = 215,669,117.40 × 89,359,853.20
  4. Step 4: Simplify right side
    143,779,411.60x = 19,272,160,670,637,568
  5. Step 5: Solve for x
    x = 19,272,160,670,637,568/143,779,411.60
  6. Step 6: Final answer
    x = 134,039,779.80

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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.