Finding the Fourth Proportional to 130,880,875.24, 180,623,688.78 and 72,143,408.08
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Solution
The fourth proportional to 130,880,875.24, 180,623,688.78 and 72,143,408.08 is: 99,562,357.48
Step by Step Solution
- Step 1: Write the proportion equation
130,880,875.24 : 180,623,688.78 = 72,143,408.08 : x - Step 2: Convert to fraction form
130,880,875.24/180,623,688.78 = 72,143,408.08/x - Step 3: Cross multiply
130,880,875.24x = 180,623,688.78 × 72,143,408.08 - Step 4: Simplify right side
130,880,875.24x = 13,030,808,488,570,458 - Step 5: Solve for x
x = 13,030,808,488,570,458/130,880,875.24 - Step 6: Final answer
x = 99,562,357.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.