Home / 129,038,897.80-193,558,346.70-64,541,643.40

Finding the Fourth Proportional to 129,038,897.80, 193,558,346.70 and 64,541,643.40

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Solution

The fourth proportional to 129,038,897.80, 193,558,346.70 and 64,541,643.40 is: 96,812,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,038,897.80 : 193,558,346.70 = 64,541,643.40 : x
  2. Step 2: Convert to fraction form
    129,038,897.80/193,558,346.70 = 64,541,643.40/x
  3. Step 3: Cross multiply
    129,038,897.80x = 193,558,346.70 × 64,541,643.40
  4. Step 4: Simplify right side
    129,038,897.80x = 12,492,573,789,804,966
  5. Step 5: Solve for x
    x = 12,492,573,789,804,966/129,038,897.80
  6. Step 6: Final answer
    x = 96,812,465.10

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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.