Home / 86,913,643.40-130,370,465.10-56,680,555.40

Finding the Fourth Proportional to 86,913,643.40, 130,370,465.10 and 56,680,555.40

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Solution

The fourth proportional to 86,913,643.40, 130,370,465.10 and 56,680,555.40 is: 85,020,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,913,643.40 : 130,370,465.10 = 56,680,555.40 : x
  2. Step 2: Convert to fraction form
    86,913,643.40/130,370,465.10 = 56,680,555.40/x
  3. Step 3: Cross multiply
    86,913,643.40x = 130,370,465.10 × 56,680,555.40
  4. Step 4: Simplify right side
    86,913,643.40x = 7,389,470,369,624,316
  5. Step 5: Solve for x
    x = 7,389,470,369,624,316/86,913,643.40
  6. Step 6: Final answer
    x = 85,020,833.10

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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.