Home / 155,368,813,848.39-214,406,681,293.46-86,781,227,909.29

Finding the Fourth Proportional to 155,368,813,848.39, 214,406,681,293.46 and 86,781,227,909.29

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Solution

The fourth proportional to 155,368,813,848.39, 214,406,681,293.46 and 86,781,227,909.29 is: 119,756,820,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368,813,848.39 : 214,406,681,293.46 = 86,781,227,909.29 : x
  2. Step 2: Convert to fraction form
    155,368,813,848.39/214,406,681,293.46 = 86,781,227,909.29/x
  3. Step 3: Cross multiply
    155,368,813,848.39x = 214,406,681,293.46 × 86,781,227,909.29
  4. Step 4: Simplify right side
    155,368,813,848.39x = 18,606,475,074,602,253,942,784
  5. Step 5: Solve for x
    x = 18,606,475,074,602,253,942,784/155,368,813,848.39
  6. Step 6: Final answer
    x = 119,756,820,006.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.