Finding the Fourth Proportional to 101,130,746.24, 139,536,159.36 and 61,437,483.56
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Solution
The fourth proportional to 101,130,746.24, 139,536,159.36 and 61,437,483.56 is: 84,768,982.88
Step by Step Solution
- Step 1: Write the proportion equation
101,130,746.24 : 139,536,159.36 = 61,437,483.56 : x - Step 2: Convert to fraction form
101,130,746.24/139,536,159.36 = 61,437,483.56/x - Step 3: Cross multiply
101,130,746.24x = 139,536,159.36 × 61,437,483.56 - Step 4: Simplify right side
101,130,746.24x = 8,572,750,496,705,541 - Step 5: Solve for x
x = 8,572,750,496,705,541/101,130,746.24 - Step 6: Final answer
x = 84,768,982.88
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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.