Home / 920,700,141.81-1,270,566,705.46-497,313,801.07

Finding the Fourth Proportional to 920,700,141.81, 1,270,566,705.46 and 497,313,801.07

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Solution

The fourth proportional to 920,700,141.81, 1,270,566,705.46 and 497,313,801.07 is: 686,293,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,700,141.81 : 1,270,566,705.46 = 497,313,801.07 : x
  2. Step 2: Convert to fraction form
    920,700,141.81/1,270,566,705.46 = 497,313,801.07/x
  3. Step 3: Cross multiply
    920,700,141.81x = 1,270,566,705.46 × 497,313,801.07
  4. Step 4: Simplify right side
    920,700,141.81x = 631,870,357,808,978,176
  5. Step 5: Solve for x
    x = 631,870,357,808,978,176/920,700,141.81
  6. Step 6: Final answer
    x = 686,293,320.83

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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.