Home / 287,569,281,623.40-431,353,922,435.10-130,534,843,415.40

Finding the Fourth Proportional to 287,569,281,623.40, 431,353,922,435.10 and 130,534,843,415.40

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Solution

The fourth proportional to 287,569,281,623.40, 431,353,922,435.10 and 130,534,843,415.40 is: 195,802,265,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,569,281,623.40 : 431,353,922,435.10 = 130,534,843,415.40 : x
  2. Step 2: Convert to fraction form
    287,569,281,623.40/431,353,922,435.10 = 130,534,843,415.40/x
  3. Step 3: Cross multiply
    287,569,281,623.40x = 431,353,922,435.10 × 130,534,843,415.40
  4. Step 4: Simplify right side
    287,569,281,623.40x = 56,306,716,721,684,366,229,504
  5. Step 5: Solve for x
    x = 56,306,716,721,684,366,229,504/287,569,281,623.40
  6. Step 6: Final answer
    x = 195,802,265,123.10

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1.5x scale

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.