Home / 128,725,095.60-193,087,643.40-47,929,345.20

Finding the Fourth Proportional to 128,725,095.60, 193,087,643.40 and 47,929,345.20

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Solution

The fourth proportional to 128,725,095.60, 193,087,643.40 and 47,929,345.20 is: 71,894,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,725,095.60 : 193,087,643.40 = 47,929,345.20 : x
  2. Step 2: Convert to fraction form
    128,725,095.60/193,087,643.40 = 47,929,345.20/x
  3. Step 3: Cross multiply
    128,725,095.60x = 193,087,643.40 × 47,929,345.20
  4. Step 4: Simplify right side
    128,725,095.60x = 9,254,564,314,373,102
  5. Step 5: Solve for x
    x = 9,254,564,314,373,102/128,725,095.60
  6. Step 6: Final answer
    x = 71,894,017.80

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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.