Home / 139,088,080.90-191,931,950.10-77,203,547.92

Finding the Fourth Proportional to 139,088,080.90, 191,931,950.10 and 77,203,547.92

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Solution

The fourth proportional to 139,088,080.90, 191,931,950.10 and 77,203,547.92 is: 106,535,566.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,088,080.90 : 191,931,950.10 = 77,203,547.92 : x
  2. Step 2: Convert to fraction form
    139,088,080.90/191,931,950.10 = 77,203,547.92/x
  3. Step 3: Cross multiply
    139,088,080.90x = 191,931,950.10 × 77,203,547.92
  4. Step 4: Simplify right side
    139,088,080.90x = 14,817,827,506,924,398
  5. Step 5: Solve for x
    x = 14,817,827,506,924,398/139,088,080.90
  6. Step 6: Final answer
    x = 106,535,566.61

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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.