Home / 129,357,558.23-178,516,138.20-70,622,698.91

Finding the Fourth Proportional to 129,357,558.23, 178,516,138.20 and 70,622,698.91

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Solution

The fourth proportional to 129,357,558.23, 178,516,138.20 and 70,622,698.91 is: 97,460,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,357,558.23 : 178,516,138.20 = 70,622,698.91 : x
  2. Step 2: Convert to fraction form
    129,357,558.23/178,516,138.20 = 70,622,698.91/x
  3. Step 3: Cross multiply
    129,357,558.23x = 178,516,138.20 × 70,622,698.91
  4. Step 4: Simplify right side
    129,357,558.23x = 12,607,291,478,674,548
  5. Step 5: Solve for x
    x = 12,607,291,478,674,548/129,357,558.23
  6. Step 6: Final answer
    x = 97,460,802.84

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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.